How long does Adderall last?

Immediate release Adderall effects last for 4-6 hours. But the extended release version of Adderall XR can last for 24 hours. Why? Different formulas of Adderall last for different periods of time. Learn more about Adderall effects and duration of action here.

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Immediate release versions of Adderall last for 4-6 hours and require repeated dosing. Extended release Adderall XR lasts a full 12 hours but should be taken ONLY ONCE every 24 hours. More here on how Adderall affects the body and brain, and how long its effects last. Plus, a section for your questions about Adderall’s duration at the end.

Adderall effects on the body and brain

Adderall is made of amphetamine salts when are central nervous system stimulants, used to treat people with excessive sleepiness (narcolepsy) by stimulating the central nervous system. Adderall works by increasing the amount of dopamine and norepinephrine in the brain.  When taken therapeutically, Adderall can help people maintain focus and concentration.  When taken to enhance performance, Adderall addictive properties include its strong effects on the central nervous system, including enhanced concentration as well as euphoric effect.

Does Adderall work for everyone? No, the amphetamine salts contained in Adderall may not be the right treatment for you.  But, Adderall may also work wonders. In fact, Adderall  has a paradoxical effect when used to treat people diagnosed with ADHD, helping them focus and remain calm.  But as a stimulant, Adderall can cause:

  • difficulty with sleep
  • nervousness
  • restlessness

How long do Adderall effects last?

The effects of immediate release Adderall last anywhere for 4-6 hours. Tablets usually last about 6 hours, and should not be taken more frequently. Adderall XR’s effects will last a full 12 hours. However, Adderall XR should not be taken more frequently than once every 24 hours, to reduce the risk of potential overdose.

How long does a Adderall high last?

When people take Adderall get high, an Adderall high peaks after about 4 hours and will begin to decline unless another Adderall is taken at that point.

Adderall high effects

An Adderall high causes stimulant effects which may include:

  • increased alertness
  • excitement
  • fast/pounding heartbeat
  • mood or behavior changes

Adderall is addictive, so abusing it to get high does carry risks. An Adderall addiction can result in powerful withdrawal symptoms, uncontrollable cravings for the drug, and compulsive use of the drug despite negative consequences.

Adderall duration of action

The half life for Adderall can vary widely between people based on diet and other factors, but is typically between 11-17 hours. However, the immediate release formula of Adderall needs to be taken throughout the day to continue to be effective. Adderall XR only needs to be taken once every 24 hours.

Adderall time in the body

Any type of Adderall takes a little while to completely leave the body. After two days, the immediately release is unlikely to show up on a urine drug test, but it may still show up in hair or saliva tests. The extended release version of Adderall may take 3-4 days to clear your system since it takes a full 24 hours before it begins to leave your body.

How long Adderall lasts questions

Do you still have questions about the effects or duration of action for Adderall? Please leave your Adderall questions or comments here. We are happy to respond to all legitimate queries with a personal and prompt response.

Reference Sources: NHTSA Drug and Human Performance Fact Sheets: Methamphetamine (And Amphetamine)
Higher Education Center for Alcohol, Drug Abuse, and Violence Prevention: Prescription Stimulants: Ritalin, Adderall, Concerta, Dexedrine:
FDA Medication Guide: Adderall XR

ToxNet: Amphetamine
About the author
Lee Weber is a published author, medical writer, and woman in long-term recovery from addiction. Her latest book, The Definitive Guide to Addiction Interventions is set to reach university bookstores in early 2019.


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    1. Im 6’4 a 260 pound 18 year old guy and i take 36mg, 50 mg is a pretty substantial quantity. At it’s core it really does correlate with her metabolism. Don’t take it after noon or else she’ll have trouble sleeping it lasts a good while. i’d say like 8-10 hours. It’s helped me so much for school and overall concentration for my ADHD. I first started taking a generic Adderal like 5 years ago, I took 36mg when I was like 13 and it gave me a tick so my jaw would twitch so i went to 18mg. I would honestly first try one of the 25mg and if she doesn’t feel anything go for the 50mg.

  1. Ok so I took 10 mg adderall on Friday an took 2.5 on Saturday morning would it still be in my system by 2pm today Monday November 19th 2018?

  2. Hi, I’ve been on adderall and have been taking it as prescribed 2 20mg 2x a day for the past 3 weeks. My question is what would happen if I immediately stopped? I googled it and the withdraw doesn’t sound too good especially with my current employment. How long will the drowsiness last as well after stopping?

  3. I am frisyrated with doctors. I jad neen taking allderall for years and it helped me functipn normal
    Moved new doctor took me off replaced with weelbutrin. Since then o am n ow on disability. My symptoms of depression and anxiety omce agaim became debilitating
    O never abused it tokl only as prescribed and never used it to get high
    Dt nowadays because pf yhe adfiction crises im america are reluctant to prrscribe a medication that truly saved my life.

  4. My question is… I do not have ADHD but feel like I get confused and can’t
    Focus, kinda like all over the place, try to finish one thing
    But move to the next.
    Should I try Adderall 10mg? I’m wondering if it will help
    Be more clear. I’ve never taken any drugs for depression
    Yes a Xanax once in a blue moon for previous surgeries.
    Or maybe to try and sleep.
    That’s all. So just wondering about this Adderall?
    Thank you

    1. Hi Susan. Adderall is a stimulant that affects central nervous system, which will keep you focused and concentrated. So, having a lot of energy is a symptom that may be caused by Adderall.

  5. Hello I think my husband is abusing adderall but Im not sure he has addictive perainality disorder with social disorders. His mood has been overly present lately which Im not complaining but he has a twitch that he has stopped but the part that is worrying me is he is losing a massive amount of weight he has gone done 6 pants sizes in 5 months which is very unusual and I have notice he will be up alot at night for two days then the third day he can sleep all day how can I tell because he went let me know and I asked him to go to a doctor because he also has evessive loss bowels now all the time are there any real ways of knowing and what are some other sytomes I should look for please help me figure out what he is on because he is not the kind of man to ask for help and I just want him to be healthy

  6. I took half of pill, 10mg adderall, Friday around 2pm. It’s sunday now, would it be out of system and not show up in a urine test?

  7. Damn yesterday I took I don’t know how much but I couldn’t sleep for the entire night and I kept vomiting. Shit’s no joke take it in the morning if you have to

  8. My 12 yr old little girl takes 30 mg of Adderrall XR daily ( capsules,her Dr. calls them ‘bb’s’) and is also prescribed 5 mg of amphetamine salts for around 2pm. I very rarely give her the second ones, I rarely feel she needs them. Sometimes, like tonight, she has a difficult time going to sleep. Since she definitely has ADHD , would taking the 5 mg
    salts relax her or make her anxious? I’m really going nuts because she’s not sleeping at all tonight, and some other nights. It has to affect her school work and day tomorrow. I hope you can help us !
    Thank you,

  9. I used to have a nasty Adderall habit. At my worst I took nine 30mg XRs over the course of about 2 hours. I was up for about a week and lucky I didn’t die. The purpose of my post is simple, if you are thinking about trying it, and that’s why you’re here, don’t do it. I’m sober now and happier than I ever was abusing Adderall.

  10. For a 20 mg “m. amphet salts” in an orange capsule. Would that be immediate or extended release? How long should i wait before taking another one?

  11. Crystal:

    Yes, the effects of adderall can stop when eating. From my experience, It seems like meat foods kill the adderall. Eggs seem to enhance it though. To get around this problem, take your next dose just before or after eating. Btw, I have found that eating eggs in the morning makes the adderall stronger and last longer. Sometimes you can be hungry and not know it, but the adderall is less effective if you are hungry.

    Another thing that can make adderall less effective is not having enough vitamin C, however take vitamin C at the end of the day because it will kill the effects of adderall. Somehow the vitamin C is important for dopamine. Orange Juice works best rather than Vitamin C supplements, thats based on my experience. I get a much smoother and calming experience the next day.

    Next, 10 mg is not a lot – it may seem fine now but you may start finding that it only lasts for about 1.5 to 2 hours instead of 5 hours or becomes inconsistent. I eventually increased my dose to 30mg and the adderall consistently lasts 5 hours, it has been about a year and 30mg consistently lasts 5 hours.

  12. I take my adderall every morning at between 7/7:30.because l have to be at school at 9.l went to the doctor the same day at 3 they ask me to pee and she said that the adderall wasn’t in my system and I don’t understand why?so she didn’t give the to me.l’m just try to figure out why it wasn’t in my system.

  13. I have recently been given prescription adderrall 10mg XR. I don’t eat breakfast and med seems to work great with my focus. But the moment I eat, the effects wear off. Is that normal?

  14. If I took and take 20mg XR today and everyday through January 12th and then stop would I test clean on January 25th? Or what do I need to do to ensure a clean test other than the obvious of not using. (Drink water, etc)?

  15. I am prescribed Adderall 30 XR. I’ve been abusing and ran out of my prescription early, so I resorted to buying some off a friend.
    However, I ended up taking 90 mg on Saturday, 40 mg yesterday, and 60 mg today. Not only is this costly, but I am messing with a treatment that is very beneficial to me on regular doses.

    I really need help quitting. If anyone has any advice, I would be very grateful.

    1. Hi Joey. Call the helpline you see on the website to get in touch with a trusted treatment consultant who can help you find the best rehab for you.

  16. Im 23 and been perscribed 20 mg xr 2 x a day
    Honestly i just take one bc your not supposed to take two xr a day and i already got high blood pressure
    Anyway it doesnt seem to phase me now, im actually tired all the time (not a crash) i intercept others, loose track of conversations, day dream, and cant remember shit ….

    Im trying to get 10 mg ir next time maybe 2 x a day would work for me i have a TBI POST TRAMATIC BRAIN INJURY along with stress and cronic pain from a spinal minipulation.

    My dr has perscribed me aderall 20 mg xr
    Xanax0.5 2 x a day when needed
    Xanaxxr 0.5 once at bedtime now
    And triliptal for mood
    Plus Neurotin 400 mg 3x a day .

  17. hi, i have taken 1- 30 mg of Amphetamines salt combo, i will be seeing my Probation officer..can you tell me how long that 1 pill stays in your system..thank you…

  18. Hello, I take 20mg of Adderall IR. After taking it, it opens my whole world. Things in general become clearer to me, I understand and can pay attention a lot better in class, it makes me want to work work and work. But
    1. Although it makes me concentrate a lot more, it makes me want to do all my college work and finish everything, even do more chores than I have. Because of this, I can’t prioritize… sometimes I don’t even notice I’m doing things I really shouldn’t at the time. What’s your opinion on this?
    2. Am I the only one who actually feels like i get all the positive effects of Adderall IR and no negative effects? I feel It lasts all day, giving me a boost in concentration, energy and mood. The improvements in mood even last over a day. I can even sleep on adderall after about 2 hours.

  19. I was prescribed 30mg I have been taking it for three days now. My question is when taken a new drug you have some side effects. I have dry mouth, hard to go to sleep, and today felt really sad. How long do I take this before the effects will start going away, or will they? How long before it gets in my system to show the effects of the drug?

  20. I’ve been taking Adderal as prescribed. I find that when I take it and get up and start moving around it starts working quickly. But I take it and sit still it doesn’t kick in until I get up and move around. Hope this helps someone.

  21. I took 30mg around 8am then another 30mg around 12 because of a misunderstanding where i took more than i was supposed to, it is now 3:56 in the morning, when will i go to sleep

  22. How long does it take for a 30 mg salt combo out of your system when you eat half of on at 8pm and then eat the other half between 11pm and 2:00am. And you take it to get high

    1. Hi C516. I’d suggest you consult your doctor or a pharmacist before you do. It may be ok, or you might be warned of some possible side effects. They may suggest other ways to solve the problem.

  23. I have been takin adderal 20mg Xr and I take it at 8feel it til 3 then I start feeling sleepy I soon will be working 12 to 14 hour day a few times a week should I ask for higher does or a instant release 10mg for evenings other than that mess make me normal just able to concentrate better

  24. I have tried many different meds for my ADHD.. Including Dexedrine….. I am currently back on 30mg of ER that seems to not do much, so my doc has added 20mg of be split in the morning and afternoon…. Why not just up the dose of the ER? This confuses me a bit….

  25. This is what I need and cannot find a Dr anywhere that will prescribe it for me? Yet they dish it out to thousands of children every month. I have been bedbound for 11yrs with post viral CFS and cannot stop sleeping around the clock. I cannot function! I want to end my life because I don’t have one and am just a burden to everyone!! I just want to live a basic life, but because Drs are corrupt or just don’t care.. I can’t live. I’m so distraught I can barely type this message. I can’t kill myself cos I’m too gutless!!!

    1. You should go to a doctor and say you have ADHD and have problems concentrating and also about your sleeping problems and just be honest with them, u can say you have a friend that takes them and gave you a few says worth and you tried it cuz you dont know what else to do and no one will help you and that when you took it it really helped you and made you concentrate and made your day bearable and that your not trying to get high you just really want to feel better

  26. Why would my doctor prescribe Adderall XR twice a day if it should only be taken once a day? I thought it lasted 8 hours. So I let her know I take it at 4am and it doesn’t really help for class or the evening. I am newly diagnosed as a 37 year old adult for ADHD – still learning about the disorder. I just thought the last three years I became a crazy angry person-not in my personality at all. But now instead of just taking care of myself….I have a husband, 8, 5, and 3 year old. Oh and started college Jan. 2016. So I guess how I coped my whole life wasn’t working anymore.

  27. my 12 yo son is taking 15mg XR adderall for ADD. i am wondering when the extra amts are released in his system (approximate obviously) / e.g. what is the timing? e.g. is it when he takes the pill and then again four hours later? Or is there a 3rd dose in there too??? he seems to have more trouble sleeping with this pill than the one that is not extended release. not sure if we should switch back. Both regular adderall and XR seem to have him unable to pay attention during his last 2 classes of the day. Not sure if XR is worth it.

  28. Is it safe to take adderall immediately after the effects wear off. I have to keep going on my paper and i can feel the effects wearing off. I want to take more so I can go all night. If I take just one will that reactivate the others Ive taken or should I take the usual amount again.

  29. I took 60mg orange adderall today at 10am. what time will i be able to sleep? this is the first and last time. but im worried all be up all night! if so will benadryl help? how many would I need? thank you plz respond asap. it’s already 730pm.

  30. I have been on Adderall most of my life doctors been prescribing me so now this new doctor will not continue prescribing me Adderall so I relapse off heroine after being clean for years…Now I have no interest in learning or anything so I purchase Adderall from others so I can function. .I have been on Adderall so long..Now being I don’t have a regular protocol I have to self medicate so my eyes can focus .what do I do

  31. I was just recently put on Adderall, so I’m still trying to figure everything out. I’m taking my medicine as prescribed (half a 20 mg pill in the morning, and the other half around noon), but am having mixed feelings about the effects. I start losing my focus again around 8 or 9pm, but can’t get to sleep until 2am! Is it possible for the positive effects of Adderall–calmed thoughts and ability to focus–to wear off, but for it to still keep you wired enough to not sleep even when you’re so tired your eyes hurt? I’m not sure if it’s the medication or something else….

  32. I have taken 120 mg of adderall over the past 24 hours. How long will it take to leave my blood stream? Also, what can I do to flush it out of my system?

  33. Hi, I just got put on adderall 20 mg xr for add, I actually have a couple questions. I feel as if the xr doesn’t help at all and the instant release helped a lot but didn’t last the full day of classes. My doctor is at a loss and doesn’t know what to do either. I was on the instant release first then went back after a month because it would help for half the day then about after lunch time I got very fatigued had blurry vision. I couldn’t even see let alone concentrate. So the doctor told me to try the XR because it lasts longer. But I feel that it’s just not working as would get off track so easily. Do you think I need a higher dose of the xr or should I go back to the instant release and just take another one when I start to feel fatigued. I tried to seek guidance from a friend and he said to take an xr right before bed then go to sleep, and wake up and do another xr but I feel that’s ubhealthy. Please help I’ve done so much research and no one, not even my doctor can figure out what to do.

  34. I was prescribed adderall 2 years ago to help with school and I kept taking it for 2 years recreationally. I stopped cold turkey about 5-6 months ago and I am still having major issues with my eyesight. (Tunnel vision/ fish eye and light sensitivity) is there anything I can do to help my eyes? Or am i stuck like this?

  35. I have a bro that likes getting high on almost anything. An I just want to make sure he is going to be OK to night He has taken his 16 mg of Suboxone today like Usal but also IV Cocaine rufaly $30 worth, took a 1mg lorazepam and 60mg Adderall. He also has a 1mg Xanax that I have been holding onto for him in case of an emergency he says, but would that even be safe to give to him??

  36. My doctor prescribed me Adderall so that I would not use crack I use crack not for the high but for the High 2 zone out if that makes any sense so I took 20 milligrams this morning immediate-release should she be prescribing me this or should I tell her not to I don’t have and never have had a prescription dependence my drug of choice has always been pot or crack and lately it’s been cracked but she prescribed it to me so I would take that instead of crack but it did not get me high it actually calms me down I was really anxious and had a lot of excessive energy I used my treadmill 3 times the first two times for 10 minutes and then the third time first six and a half minutes and this was all within 45 minutes to an hour so it calms me down but it made my heart go up to a hundred and eight my blood pressure was 100 over 71 but my heart rate was 108 should I tell her not to prescribe this to me and should I not take this it is the Adderall immediate-release 20 milligrams everyday

  37. I have been taking adderall prescribed by a doctor for two weeks now. Does having one full 10mg pill and half of another increase the duration of the release?

  38. Everyone worried about passing drug tests should stop taking so many drugs. Seriously. You’re all weaklings. Do drugs if you want, just stop whining and asking for advice about your piss on the internet. Or just grow up and stop popping pills. Or, hey, try reading the comment thread … since you’re not the only person on the planet stupid enough to take unprescribed pills, odds are your question has already been answered by the patient Addiction Blog team. Remember: the earth revolves around the sun, not you.

  39. Hi, I took a 20 mg XR Adderall tablet on Saturday night. Then I threw up later on that night and this morning (Monday) I had a urine analysis test. How likely am I to pass it?

  40. Hello I took like 22 milligrams Adderall that’s what one of the capsules and have XR and now I feel fucked in the head I have bipolar level 1 manic schizophrenic OCD and severe social anxiety I took the Adderall XR will not prescribed so I bought them from someone and took that about I don’t know 3 days ago and I still feel fucked up and my body hurts is that a sign of Adderall also my head hurts please get back with me I’m freaking the fuck out I just don’t feel right I want to feel good again also I’m on Xanax you know and something for my psychotic episodes but I didn’t take those me I’ve been taking them in between but also I’ll take it I don’t know inhaler that says xopenex let me know if I need to call nine-one-one

  41. I don’t take adderall. My sister in law gave me a 10mg ir on Friday and another on Saturday morning 8am to study for a work exam. I had to take a drug test at 3pm Monday. I am worried that I will fail and be terminated. I worked out Saturday afternoon, did a 4 mile hike on Sunday and a 1hour 30min workout Monday morning. Will I fail this drug test?

  42. I haven’t took an Adderall and about month well today I took 60 milligrams when it’s 6 o’clock this morning 30 milligrams and 30 milligrams at lunchtime it’s now 10 o’clock my head is killing me I have the worst headache ever could it be from the Adderall diagnosed heavily with ADHD took Adderall for years as a kid butt taking them everyday and years is just throbbing my head that I took a 15 milligram and my headache went away for about an hour and a half then it came back do I need more Adderall

  43. My son (age 9) started taking adderall two days ago and is having bad stomach pains, trouble sleeping with constipation. How long will this last and will his body adjust? He was diagnosed with ADHD about three months ago and they’re just putting him on it now and does that make any difference? He is on 10mg xr (extended release).

  44. Is there a threshold where adderall works or does not work? For example, 15mg does not work at all but 20mg does. If so, how can I maintain this level for the entire day .. 8am till 9pm? For example, Should I start with 20mg in the morning then every 2-3 hours take 5mg?

  45. I just went back on adderall XR for my inattentive type add, I asked the psychNP (not my original psych from years ago) to be on IR because I remembered that, while adderall XR works for me, that the XR lasts too long– she seems uncomfortable with prescribing IR and reassured me that XR doesn’t keep you at constant levels– I asked for the lowest dose bc of knowing XR lasts too long and the fact that she wouldn’t prescribe IR; well, sure enough, I took 20mg XR at 8:30 a.m., it is now midnight and it’s still very much effecting me. Would taking a lesser dosage make a difference in duration? And would that in turn lessen the effectiveness as well? Am I being reasonable asking for IR, would that actually have the effect I’m thinking it would, i.e. reduce the duration while maintaining the effectiveness? It’s really frustrating not being a person who wants to abuse the drug, but being treated just the same, or like I don’t know anything about how my body metabolizes adderall XR. Other add meds have not worked, and I haven’t been on any in years because the others didn’t work, and adderall XR did two things–lasted too long, and initial effectiveness decreased–as dosage was increased some effectiveness was restored, but the long-lasting effect was even more an issue and really screwed up my sleep and made me feel, the best way I can describe it is–“acidic.” I would really like to take the lowest least long acting dosage that works, but don’t believe IR is an option with most practitioners– suggestions?

  46. I took 10mg adderall in the past and it seemed to work within 30 I took a twenty,no effect whatsoever.what happened ? Neither were ir.

  47. I take the generic form of Adderall . . . it just amphetamine salts. Its only 10mg. I usually only take a half around 10:am or 11:am.. I’m a psychotherapist so my work day goes until 8:00PM. I do take a second does most of the time, just the second half of my first pill. Yesterday, for some reason, I happened to take the 10mg pill at 3:pm . . I didn’t sleep at all. that being said, I don’t sleep at all even when I take the half dose either . . . which is about 3:PM. I take a Xanax for sleep, but that didn’t work either

  48. I have been taking adderall now for 5 yrs. I take a total of 60 mg./day. Recently I have been severely tired, so tired I cannot function/hold down a job or just get up! My dr. changed all my meds except adderall so I am pretty sure that’s causing the tiredness. I am now taking Wellbutrin for depression and adderall for ADD. Have I become immune to adderall? I looked online and some people say to take less for awhile and some say to take more. If I stop taking it I will not be able to focus and become overwhelmed. This tiredness just started happening and At first I didn’t think adderall could make you tired, then I did some research. I have appt. with dr. ,but it’s next month. I just wanted some feedback from someone who really knows all about this drug.
    Thanks !!

  49. Adderall is definitely an dental item that’s utilized in management of ADHD usually. It associated with the CNS catalyst type of drugs.

  50. My daughter started taking adderall xr. The first two days on the medication she had no issue. Monday she took the medication and from about 2:00pm-11:00pm was vomiting on and off. She was not even able to keep down water. Is this a side effect to the medication or can I just say this is a stomach bug. She had also been complaining of stomach pain.

    1. Hi, Jane. I suggest you consult with your daughter’s doctor about her vomiting. Maybe, it’s just a stomach bug as you said. But, go to the doctor’s to be sure that everything’s fine.

  51. I just started taking adderall xr 20mg once a day after 4 hrs I started getting very tired should I call my doctor or will the
    Drowsiness go away

  52. Hi,
    I live in a college town filled with idiots and now I feel like one of them, I went to a party and was hanging out with some friends. I don’t drink because I suffer from alcoholism and stay away from it but some of the guys were taking Adderall. I was handed a bottle of water that they said had a bit in it. I later found out after going to the ER that there was a bit over 140mg of Adderall IR in my system. Just happened the other night and now I’m trying to get clean from it. That stuff was horrible for me. I honestly thought I was gonna die. Does it take a long time for this substance to leave the body at that dose? it was in one dose only. Id like some help please. Those guys were jerks.

  53. I don’t have ADHD or AADD. Would it effect me if I decide to use it to study for my big tests?
    I’m a college student. It would be my first time using this

  54. Ive been taking the 30xr for about a month now 5 days a week an i havent been able to sleep.. Now its going on 26hrs that i slp since monday.. Anything that will get me to sleep. Ive sone the melatonin an that has no effect i shower after work an that wakes me up even more.. HELP

  55. Can the dosage being taken affect the time it takes to wear off, and how so. Especially because I take 10 mg a day, but one day I accidentally took 60 mg in the early evening(long story)*
    And it lasted ~22hrs
    They normally last~11-12 hours
    and it could be useful to note that they were each 5mg, With two 5mg to equal 10mg, does that mean anything either

    1. Hello Libby. Yes, the drug dosage can affect the time that needs to wear off. Please, next time be sure that you take the dosage as prescribed by a doctor to avoid any kinds of risk.

  56. Hi, I have treatment resistant major depressive disorder and really have a hard time staying awake during the day, My doctor prescribed me 20mg xr of Adderall short term to give me a boost and help me get back to activities, working out and basically having a life. I take 10mg in the morning and another 10mg before lunch but not to be taken after 1pm. Every time I take it I feel so tired and just want to sleep. I feel even more tired than before I started it 5 days ago. I’m also on 450mg of Wellbutrin and 40mg of Lexapro. I appreciate any advice. Thanks!

  57. Just my own experience, everyone is different. As far as duration is concerned, I will take 60mg of XR at 6 am (not prescribed). I do this about three times a year when I have to clean or do something like that. Anyhow, the effects last me all day, a dose at 6 am will having me coming down around 7 or 8 pm.

  58. Hi I’m Lindsey. I recently started being prescribed Adderall ir for moderate narcolepsy (I also have ADD). I take 10mg 2x a day. At first I would take the 1st dose at about 6am and the second at noon. I now take both at the same time, 6am. On a side note my friend used to give me a 30mg ir a few times a month to help me stay awake on days I really needed to. So I knew the effects that Adderall has on me.
    So when I take the Adderall in the morning I do not start to feel its effects until around noon. and the effects last all day long. (no complaint about that!) But also the effects keep increasing as the day goes on. I don’t ever get a “come down” or “crash”. And I have to take something to help me fall asleep. Does this happen to anyone else? Is the a reason why it takes so long for an instant release to start working? Is the a reason the effects intensify as the day goes on? I’m not high from it. I do get jittery sometimes. and I’m definitely NOT complaining!!!! This drug is a miracle to me bc I’m not sleeping all day long and I’m finally getting more done and spending more time with my son and husband. It has also helped with my social anxiety. I’m just curious as to why its affecting me the way it does. which in a way is a good thing.
    Any insight would be greatly appreciated!!!!

  59. I’m currently on Adderall IR 30mg twice a day. I popped 2 pills at the same time and am worried that my system has built tolerance against it. I need someone to clarify how can I get the feeling back again with just taking 30mg twice a day? I have heard magnesium at night would help so I tried that and I felt like shit even when taking the pill, I did not feel anything at all! I am so frustrated someone needs to come up with recent articles about this drug and how to make it more effective and last longer. Also, is it better to take it before eating or after and how ling the timing gap should be?

  60. So I have the situation where I am prescribed 10mg Ritalin but the other night someone Stoll my entire bottle so a friend gave me adderall to help me because I have serious problems concentrating. I thought nothing of it but then I have a drug test tomorrow and I just found out that Ritalin and adderall are to separate types of ingredients. So I am 5’8 150 pounds fast metabolism and skinny. How long will I think at least 120mg over a two day period stay in my system? Is there any way to pass the drug test because in all honesty I didn’t think it would have been a problem but doing the research now I think it will. I am terribly scared and feel stupid for making such a naive decision but seriously I thought they were the same. Please any information would help

    1. Hi Chassidy. I suggest it’s best to take your dog to the veterinarian. We are not skilled at addressing such issues and your dog will have best chances for being safe and secure under medical supervision.

  61. Ann,
    I’m no expert, but depending on how strenuous your current job is I would say a bit of both. I take up to 40mg a day sometimes, but also take as low as 20mg if I don’t need as much on certain days. What I can say I experience with both doses is some sort of muscle aching by the end of the day. Because adderall is a stimulant and it heightens all of your body’s senses it makes your muscles more tense, even if you don’t realize it during the duration of the adderall’s cycle. So, by the time the adderall has worn off and your body is able to relax you’ll be able to feel the muscle tension that your body has been building all day. Sometimes also, I will feel some tension during the day while the adderall is in full effect. Naturally, the less of a does I take, the less aching I will feel.
    Hope this helps!
    Jess 🙂

  62. I just started taking Adderall on Monday night. I have Narcolepsy and work third shift so my doctor prescribed me 20 mg twice a day. I was not able to sleep at all today so I am feeling pretty rough. I am having some aching pain in my mid to upper back that does not seem to be eased by tylenol or ibuprofen. My new job is a bit more physical than what I am accustomed to so I am trying to figure out if the pain is just from work or could be a side effect of the Adderall. Thanks in advance.

  63. If I have a 30mg XR extended release capsule, and pop it open and swallow just half of the beads, does the potency lessen? In other words, do I feel less of a “high”? Or…does the effect wear off faster? Like, in 6 hours rather than 12, for instance…?

  64. There are some people with is liver metabolism because of what it is so they need to take higher doses. Narcoleptic and really hyperactive people tend to take higher doses, usually men.

  65. Hi Owen. People chew gum or use bonbons to keep their mouth busy when they feel the need to light a smoke. Maybe it can work for you too. The nicotine from the cigarettes is detectable in drug tests, but exactly how long does it stay detectable in the body depends on many variables, including which kind drug test is being used. To give you a rough estimate, it’s about 2-4 days for both urine and blood tests. And, the ambien is also detectable.

    @ Karennn, here are two articles that can answer your question about how much adderall is too much: and Now, 80mg is not lethal, but in people without much tolerance it can produce many unwanted effects.

  66. How do you know if you overdosed with addy? I took 80mg, but I’m pretty much okay and the side effects didn’t really bother me.. Is this normal?

  67. I know this article is about adderall but I also had a question about cigs. I’ve been smoking cigs with my friends recently,(only been a few months since I started smoknig cigs), I’m not old enough to buy one and I don’t have a vape and I don’t like smoking weed that much either. I really don’t like the taste of cigs, especially the after-taste. I only smoke cigs because I want to smoke something and cigs are the only option so far. I don’t like smoking it, but I find myself craving it and wanting to smoke it. It’s sad because I just $100 and I decided to use most of the money on adderall, and cigs, and also food. I could be doing so much more with my life than smoking in my junior year of highschool. How do I quit smoking? I can’t have my parents knowing about this, they think I’m an innocent sweetheart. How do I fix this? Also does this come up on a urine drug test or blood test? How long does it take for it to leave your body?

  68. I do not have ADHD, but my friend does and he sells them to me for a really cheap price, almost free. The first time I took it I had 20mg,and I didn’t feel anything. The first time was to get high with friends. I didn’t really know what it would do either.. The second time I took it, which was about 4 months later, I took 40mg and I felt nauseous, dizzy, dry mouth, alert, and anxious. the side affect weren’t bad at all, I could handle it. The second time I took it was because I needed to focus on studying for a class I’m at the verge of failing. The third time I took it I took 40mg at first, but I didn’t feel anything after an hour, so I popped another one and still didn’t feel anything. So I popped the last one I had too. In about 2 hours I took 80mg.. I felt the side affects a while later, but i took double the amount than last time yet the side affects were the same. If anything I was just a little more alert.. Did I overdose it? Did I do something wrong? Its been about 6 or 7 hours since i took the 80mg, and I feel like it wore off, but I’m not completely sure. Is this normal or is there something wrong with me?

  69. Hello Elsa. You know this falls under “abuse of drugs”?! But, I’m not here to preach, and for your own safety I’d suggest not taking more than one pill a day. The duration of the effects of Adderall is about 8 hours, however don’t plan on sleeping for at least 12 hours after ingestion. And, please make sure you eat throughout the day as adderall is an appetite suppressant.

  70. Hi! Yesterday (Monday) around 4pm I consumed one 30mg dose of orange xr. I took it for purposes of concentrating, given that I have an important final this Wednesday and couldn’t concentrate when studying. The pill is clearly effective, it’s about to be 4 am and I’m still extremely awake! However, today (Tuesday) is the day i need to study all day and I want to take another pill perhaps around 4 pm again. My plan was to as well take a third one on the final day of the exam which is this Wednesday. After that…no more pills! But I have a very tiny body. I am about 4”10 and weight about 90 pounds. If I proceed with my plan will there be negative effects such as overdosing, even though it’s one per day? Or will the effects of concentration last till tonight even though i took the pill Monday evening? Please help!

  71. I have been taking blue oval adderall 10 mg for yrs. sometimes snort. Well the pharmacy game me a new blue round pill this month it has U27 and and X on the back looks like to cut the pill in half. Are these ones sniffable? Has anyone sniffed these ones before?

  72. Hey so im a pretty advid user of adderall, i do probably 40-60mgs a day probably 2-3 times a week. I was just wondering how long it takes for me to start my comedown. I sniffed 40mgs at 9:00am today and have maaad homework, and want to get some tips that can help me stay “up” for as long as i can, i dont intend on an all nighter, just want it to last til about 6 or 7 pm tonight

  73. When u get a tooth pulled and u have a hole in your mouth from where the tooth was would it b okay to take some adderall the next day for my ADHD

  74. hey, i am prescribed to take 20 mg of adderall daily. i hate taking it but tomorrow i have a midterm and its my birthday. if i take half of my 20 mg pill will it just not last as long or will it not be as strong as normally?

  75. Hello! I’ve been taking unperturbed Adderall for about 2 1/2 year now. I mostly only get the pink 30s & 20s. I have many health issues going on as well. I started twitching, first just my eyelids & knee, then feet & legs but now, my twitches are beyond horrible. They are spasms big & little, from head to toe. In almost every body part, including inside ears, scalp, eyes, all over my face, even vaginal area & most recently, my neck, forehead, surface of torso all around & more! Some are big & easily visible, some are very small but can be felt, & sometimes it feels as if my leg is vibrating. They don’t usually hurt, sometimes it’s a pinch feeling, a needles, a bug crawling on me sensation, sometimes it’s a tickle & annoying. Some days are worse than others but happens every day. Even on days I don’t take addys. But they are worsening. Now I have what I call a “spasm attack” (use to be brought on by rushing, anger, excitement etc) but in the last 2 days, I’ve had 2 spasm attacks at rest, not showing emotion at all. During am attack, I can feel & see muscles everywhere spamming for example, my stomach looks like it’s moving, my head feels like it’s moving. For one of these all I can do is take my prescribed Xanax & flexerall & be very still until it’s better, never gone, but better, even talking is difficult at these times. Compared to not having an attack, it’s at least 5 muscles but usually more than will either spasm for hours, even days or just comes & goes all day. Adderall makes them worse, I thought it was just from being up & moving around more than usual but it even happens from standing/sitting in one spot for you long. Sometimes after an attack I feel tired & slightly weak. Sometimes I feel panicy & it’s hard to catch my breath but my breathing treatments help that. Even more recently, my eyes twitch, I can’t see where it’s coming from but makes it look like flickering lights, certain body parts (left foot) will get hot out of no where & some spasms feel cold. There’s much more lol. My heart pounds below my ribs it feels like, lumps behind my ears thay grow & shrink & get painful, bad back pain, my feet & hands get cold easily, more right side than left, severe shoulder/rib/leg, feet pain, ear & jaw problems & mire. I have seen my doctor & she was of no help, said that I’m just more aware of my body than others, psh. Laying here right now at this very moment, both legs, mostly around knee, calves, ankles & outer thigh, both feet including toes, my belly all over, my breastfeeding, chest, neck, shoulder, arms, fingers, upper back, back of neck, ears inside & out, scalp, face, etc all spamming in multiple places, my chest feels heavy as well as my upper stomach. It’s worrisome & I have panic attacks from it. I have 5 kids, trying to start a photography business, I’m very anemic which is why I take Adderall & my nurse knows this. I do have multiple spasms daily, sometimes I can take 3 addys & be fine, other days just 1 causes worsening actions. I’m sorry it’s still long! This stuff scares the hell out of me & I don’t have insurance anymore! Do you think any of this is caused by Adderall and/or the amount or kind I take?? To!

  76. Just wondering..I’m comming of a heroin run.but I’ve also been on methadone maintenance so this should be pease of cake klonopin is the wost withdrawal ever.I want to try and experiment with fionanol for grin.e/d anny comment

  77. I was prescribed adderall 30mg XR, when I was 16 years old. I really enjoyed the affects and results of the medication. I could think clear and concentrate. My mood became happy, joyful, and I became extreamly motivated to do things such as; Art, of any kind, I started playing the guitar by ear and became very good in a short amount of time. I loved night fishing and going on adventures.. and of course, cleaning was a consistant activity. It basically made me develop side effects of the disorder, OCD. It made me feel independent and social. But after 5 years of taking it daily, over time I developed a tolerance, my mother takes 30mg Instant release Amphetamine Salts. I started taking hers, mixing them. I then realized I had a dependancy on the drug. It made me smoke cigarettes, and weed more. I also started taking clonazapam for anxiety, (but not my prescription). Same as Hydrocodone, and occacionally alcohol. My Dr. asked me if we could try a different medication, i said i would rather stay on that or take nothing. She said she had to take me off because of my rapid weight loss. So i continued taking my moms. Now a days, I do the same. I abuse it because my tolernace is only increasing. With out it, i get withdrawal. I binge eat, sleep, i become extreamly week, demotivated, depressed and hopeless :(. My ex fiancee said unless I go get help, im hopeless to stop taking them, until it kills me. I do have ADD, i have tried other meds like Ritalin and concerta. (If I have the name correct). But they only make me feel out of it and sleepy, as well as far from social. I dont know what to do. I feel as if I had become dummer, my vocabulary and spelling skills have dropped drastically over the years. Could this be brain damage?? I have more to explaine, but I will leave it at this for now. Thank you 🙂

  78. I have been prescribed Adderall XR 30mg. I’ve noticed taking one seems to have no effect or help me at all. Should I ask my doctor to increase the dose? This is a recurring issue.

  79. I was diagnosed with ADHD couple days ago, I was prescribed adderall, the first day I took it I was feeling weard. Like if I had a lot of energy, and some how happy. It is normal feeling like that? Should I take1/2 tab?

  80. I was diagnosed with hyposomnolence which means basically that I have a sleepy brain and it is hard to stay awake, even after sleeping for 12 to 15 hours. My brain stays in a brain fog. My question is I set my alarm to wake up around 1 hour before I have to and i take 30mg adderall xr and 20mg adderall IR so hopefully I can wake up…well it isn’t working…i can still stay asleep and can’t make myself get up. I am about 50 pounds over weight when I started taking the adderall which by the way I take that same doze around 4 o’clock in the evening to stay awake until bedtime. But I do not lose weight, in fact, I have gained about 30 since I started taking it about 6 months ago…so I need some answers if you can help me. All the doctors and tests and sleep studies show the same thing and no one can help me. I have 4 children that I am missing out on because I can’t make myself wake up. Please help! Thank you, Cindy

  81. Yesterday day I took two 20mg orange instant release adderall. I took one at 4:25am and the other at 11:25am. I felt the effects all day long. When I went to bed I was some how able to fall asleep, but I woke up 4 hours later to find that the adderall was still going inside of me. I’m 5’4″ and weigh 135lbs. Did I take too much for someone of my size? How long should of that lasted? Is there a way to cut the effects of adderall short after taking it? I don’t have a script, and I don’t want to hear that I shouldn’t be abusing prescription medication. I only took it to be prepared for finals. That was the only time I plan to ever do it. Also I didn’t eat anything yesterday besides half a frosty and half a braughtwurst. Could this affect how long the adderall lasts?

  82. Hi. I used to be prescribed 20mg instant release adderall but I recently told the doctor I wanted to stop taking it and he was fine with it. This Sunday I took 8 20mg instant release adderalls in the morning and I could possibly be having a urine test this Friday. How long will the adderall stay in my system ? I’m worried because I took the label off my last bottle and I don’t know if there’s some way I can get away with taking the adderalls since I was previously prescribed

  83. Hello. everybody, I took 3 20mg of adderall quick release which I consumed ~800clock, it was my 3rd time taking adderall, Also i have been i having trippy effects, how long will it last and will my dopamine transmiter be, in good health

  84. I know taking adderall without it being perscibed is bad for you but is there a way to fall asleep after taking it? Because i dont come down i guess you could call it untill like 7 am after taking it around 6pm the night before. That is also when i start to feel sick. You’ll probably say to stop taking it but i honestly believe it helps me focus. I just don’t like not sleeping and feeling sick.

  85. If I took a adderoll 20mg ER at 5am for the first time in a long time , and I had to take a drug test the next day around 5-7 will it show in a drug test ?

  86. Hello Richard. It is very difficult to be in a relationship with an addict. I’d suggest that you seek psychotherapy from a counselor specializing in family counseling for addiction. Also, attending a support group like Al-Anon can help you make the decision to stay or leave.

  87. Hi
    My names Richard and im new to this blog.Im on here because i have been with an addict of pain pills (norcos) off and on for about 5 years.She also has been diagnosed with severe depression and social anxiety.This is by far the biggest, hardest relationship challenge i have ever been in.Im exhausted trying to keep this relationship together.Anybody out there that some advice for me.Im so lost and so done with this relationship.Help please.

  88. Hello Goerge. Thanks for your questions. Yours may be a dosing problem, or possibly a problem with Adderall itself. There are other ADHD medications. Namely, methlyphenidate (brand name Concerta). I’d suggest that you record your symptoms, schedule a check in with your prescribing doctor and do some more research on alternatives. Best of luck to you!

  89. so I have been taking amphetamine salt 20mg two a day for about a month. I was told by doc I had adhd base on some things. I not being able to focus in school or other things in at wrk. Ex reading and being able to focus to wat I was reading. But im having trouble goin to sleep, numness, lost of apetite, loss of weight, sometime over focusinn, talk alot, thinki of ideas things things to do. So I tryed to take 10 mg at 6am and 10mg at 12pm. Bad idea at,end of day around 5pm I was shaky, depresd, nausia, sad, seeing double letters, not understanding questions, nt hearin wat pple ask, tlkin and confusing ppl, having trouble talkin or saying wat I was thinking. So aftr the episode I went back to 20mg at 6_630am and anhtr at 20mg at 12 as told by the doc. I go to school from 6pm to 9pm. But I cant go to sleep til 12,2 am or im tryn to sleep nd my mind is still thinkin thinkin x10…… So is this normal? Is there othr meds for adhd? Or what especialist can I see for adhd testin to mke sure im on tje right meds and dose? So since im nt 100% of this med becus of wat ive experianced, im only taking it wen I know im goin to b goin to school To help me pay attention and not days off while im trying to learn witch I was before

  90. Hello Ray. Adderall is a daily prescribed medicine to be used for ADHD. If you’re taking it on the weekend to enhance your study, this is clinically misuse of amphetamines and a conscientious doctor would not prescribe more.

  91. I have a perscription for 20mg XR. I only “feel” the adderall within the 1st 4-5 hours and during that time I feel like i’m at my peak when im studying.

    I still seem to be able to focus after for another 3-4 hours without “feeling” the affects. and After 9 hours I probably dont feel like I can pay attention anymore.

    I only take this on weekends 1x a day. But If I were to move to a 30mg XR will the “feel” or peak last longer? Can I take 1 capsule split it in 2 so it’s only 10mg and take that after 5 hours? I assume that will create an overlap feel of 30mg correct?

    or just ask for a higher dosage? Most doctors if you tell them you need more they ask you a few questions then give it to you. makes me feel like they don’t really care most of the times.

  92. I just got prescribed 10mg of adderall IR for my ADD and I took my first dose yesterday at 2:00pm and the effects didn’t wear off at all. I took a hydroxazine that my doctor prescribed to help me sleep. The next day I still felt the effects, and at 4:00pm I felt it peak like I took another 10mg. How did that happen??? I promise you, the pills are immediate release. Will it ever leave my system?

  93. Hi! if I took a 30mg XR adderall then about an hour later vomited will i still feel the long term effects? I could feel the effects just slightly, and not as strong as usual (I take them frequently). Should I re-take one?

  94. I take Adderall XL and I can attest to the increased heartbeat, nervousness and the “shakes”. I take it to counter the extreme fatigue of MS. I am more than a little concerned about its addictive properties. I may ask my Dr. to switch me to the immediate release dose.

  95. I was prescribed 20 mg of Adderal XR a day for MS fatigue.
    How long is it supposed to take to begin working and how long is it supposed to last?
    I took one cap at 10 a.m. and couldn’t go to sleep until 4 a.m. the next morning. Seems like a long time to me.

  96. Hello Jahleel. If you notice that the effects of Adderall wear off quickly, ask your doctor for more an extended release, or controlled release, version of amphetamines. Don’t ever increase dosage on your own. It’s illegal and can be dangerous.

  97. I am prescribed to the pink 20mg Adderall pills and I often take 1 1/2 or 2 whenever I have school or studying but the effects seem to run out very quickly after I take it. Would taking a half a pill or more make the effects last longer?

  98. Hi Sarah. Probably not. Unless the urine test is specific for amphetamines and is measuring the amount of metabolites in the system. Most urine screens are either POSITIVE or NEGATIVE for use. So if you have a prescription and the test is POSITIVE, just show the prescription and the dirty test will be explained.

  99. Hi JEE. You are close to the detection time for amphetamines to have only 36 hours between use and screening. It’s possible that the drug screen will detect abuse.

  100. if i took 3x the amount of adderal prescribed (60mg xr as opposed to 20 mg xr) , how much will show up on a blood test 36 hours later?

  101. Hi Elaine. Yes, if your gut instinct is telling you to stop…you should probably stop. The thing is that if you are feeling good on Adderall and don’t need it for a diagnosed case of ADHD, you can get hooked. Seek help through a student tutor program for better paper writing techniques.

  102. I took aderall to help me write a paper because I have difficulty with that thing. The problem now is that I only feel like studying. I don’t feel like shopping or and other physical things don’t interest me anymore

    Should I stop or only take when I have the writing class. It hasn’t really helped me with the paper though

  103. Hi Brandon. Thanks for your message and we”ll update the info now, as it’s confusing! The information above was taken from Adderall XR medication guides offered by the manufacturer. While the effects of Adderall XR may last for 12 hours, people SHOULD NOT dose on Adderall XR more frequently than once every 24 hours!

  104. Adderall xr does not last 24 hours..when does sleep come in? Lol

    Adderall xr last about 8-12 (never more than 10 for me)

    Example: if someone takes a 30mg xr. 15mg little balls release immediately. Then 4 hours later releases the rest of the 15 mg little balls,that took the 4 hours to desolvse

  105. Hi Matt. Thanks for your question. It seems that the duration of action AND the therapeutic strength of action can increase with increased doses of Adderall. In fact, there has been much scientific interest and research completed to answer this question, specifically for treating ADHD. Check out the search terms: “ adderall dose duration of action” and “ adderall dose dependent effect” for more information.

  106. I have a prescription for 20mg instant-release Adderall and had one further question about the duration of Adderall. I’ve taken Adderall before without a prescription, both IRs and XRs, and was wondering about the differences between dosage sizes of the same type of Adderall. For example, when comparing a 20mg IR and a 30mg IR, do the effects from the 30mg last longer than the 20mg, or are the effects simply stronger/more noticeable?


  107. Thank you for replying quickly …. I
    did admit to her that I’d taken some as it showed in my urine. She did retest me yesterday and the last time I took any was 10 days ago. I told her I have not taken any however I’m just nervous that it will show as well as my methadone not showing again. I do not have renal failure just osteoarthritis and chorionic back pain.
    I take my methadone religiously. Do you think I’ll be okay coming out neg for the adderal and positive for the methadone?

  108. Hi Holly. Renal methadone clearance varies for people with certain medical conditions such as renal disease and those taking other prescribed or illicit drugs. As a result, urine drug tests for people on relatively low methadone dosages may be methadone negative even though subjects have ingested medication as prescribed. In other words, a false negative result can be based in your physical condition or in the combination effect of taking amphetamines.

    I’d explain your situation to your prescribing doctor, and admit to taking Adderall without a prescription. Then, ask for a re-test.

  109. I have been taking adderall off and on for the past few months. They are not prescribed to me, I get them from a friend.
    I tested positive back in June 2012. my doctor retested me today( 8/23)
    My last dose was 1 25mg on 8/13.
    I was taking two 25 mg table XL for about 8 days with the 13th of aug being the last day of just 1 25 mg tab XL
    I’m also on 10 mg of methadone taking 9 tabs a day. Will this effect my results at all to being positive?
    A strange thing happened 2 months ago when test for my methadone, my result was negative. Could the adderall effect the results for this test? Even thought I had not taken any adderall them?
    I need answers as this is totally freaking me out as I alway take my methadon never miss a dose. Why would it come back negative?

    Thanks. HLH

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