How Long Does Ritalin Stay In Your System?

How long Ritalin stays in your system depends on what formula of Ritalin you’re taking. Learn more about drug detection for Ritalin in blood, urine, and hair here.

minute read
Reviewed by: Dr. Dili Gonzalez, M.D. Dr. Juan Goecke, M.D.

Ritalin doesn’t stay in the body for very long. The drug’s half-life is 3 hours at the most, meaning that Ritalin leaves the body within a few days.  Can Ritalin show up on a drug test? NO, not on a standard 5 panel, but  Ritalin can show up positive for a drug screen panel for amphetamines.  Further, drug detection times can depend on a number of factors – how the drug was taken, how often a person takes the drug, and the person’s body time and metabolism. We review here and invite your questions about Ritalin in the system at the end.

Main Ritalin Uses

Ritalin is used to treat ADHD in adults and children. It contains methylphenidate, a stimulant medication. Paradoxically, Ritalin has a calming, focusing effect in people with ADHD. However, in those without the condition, Ritalin can cause agitation and restlessness.  And people who get high on Ritalin abuse it for its euphoric effect.

How Do You Take Ritalin?

Ritalin comes in an immediate, sustained, and extended release tablet. Although Ritalin is intended to be taken orally, some people abuse Ritalin by crushing the pills and then snorting them. Snorting Ritalin is very dangerous, particularly with the sustained and extended release.

Peak Levels And Half Life Of Ritalin

The peak levels and half life of Ritalin depend on the formulation. But with the immediate release version of Ritalin, methylphenidate reaches peak levels in the blood in about 2 hours. And methylphenidate from Ritalin tablets is eliminated from plasma with an average half-life of about 3.5 hours. As a comparison, in children the average half-life of methylphenidate is about 2.5 hours, with a range of about 1.5 – 5.0 hours.

Ritalin Drug Testing: How Long Does Ritalin Stay In The Body?

Because of how quickly Ritalin is metabolized, it doesn’t stay in the body for very long. Even the extended and sustained release formulas should clear a person’s system within a few days of being taken. Ritalin can still be tested for and detected in the system using a variety of methods, including blood, urine and hair sample drug tests.

How Long Does Ritalin Stay In Blood?

Because of its relatively short half life, Ritalin does not stay in the blood more than a day. After 24 hours, a urine test might be more accurate.

How Long Does Ritalin Stay In Hair?

Ritalin can be detected in hair for at least 90 days. However, the detection window for hair samples depends on the length of someone’s hair and the amount of the drug they’ve taken. Heavy or extended use will be easier to detect in hair screens for Ritalin than occasional use.

How Long Does Ritalin Stay In Urine?

Ritalin can be detected in urine for 1-2 days after dosing. Ritalin will be detectable slightly longer if you’ve taken the sustained or extended release version of the drug, simply because not all of the medication is released with the initial dose. Sometimes Ritalin methylphenidate metabolites can linger in the body longer depending on factors like weight or body mass.

Ritalin And Addiction

Ritalin is addictive when it is not used for a legitimate medical purpose. Addicts can develop a tolerance to Ritalin, and start taking more Ritalin achieve euphoric side effects. This can lead to withdrawal and can increase the risk of overdose.

Problems With Ritalin?

If you struggle with Ritalin addiction, please see a doctor for help. There may be therapies which can help you quit taking Ritalin. Being open with friends and family about your struggles with Ritalin will help you build a support network that can help keep you accountable.

Ritalin In Your System Questions

If you are looking for help with methylphenidate (Ritalin) addiction, you can find answers to your many questions and learn what happens during Ritalin addiction treatment programs in our comprehensive guide on Methylphenidate Addiction Treatment.

In case of any additional questions for Ritalin in your system use the question section below. We will be happy to respond to your questions with a personal and prompt response.

Reference Sources: NCBI: Methylphenidate
Toxnet: Methylphenidate
DEA: Methylphenidate (Ritalin)
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.
Medical Reviewers
Dr. Dili Gonzalez, M.D. is a general surgeon practicing women's focused medici...
Dr. Goecke is a medical doctor and general surgeon with personal experience of...

All of the information on this page has been reviewed and verified by a licensed medical professional.


Leave a Reply to heather Cancel reply

Your email address will not be published. Required fields are marked *

I have read and agree to the conditions outlined in the Terms of Use and Privacy Policy.

  1. My girlfriend gave me a broken piece of a Ritalin pill for a headache and didn’t tell me it was Ritalin. I do not do any drugs at all ever. I have a hair follicle test in a week. I’m tripping. Is this going to show up?

    1. Hi Teisha. When it comes to hair tests, the result depends on factors like the type of drug, amount used, frequency of use, and the nature of hair sample. Ritalin could be detected on a hair test for up to 90 days.

  2. I recently came up positive for cocaine and I didn’t use but I just started baby sitting and one of my kids is on Ritalin it’s a capsule but he has problems swolloing so I release the capsule NY had on a spoon with applesauce could this cause a positive urine for cocaine

  3. I just have a question…. i wanted to know, how long, or days it will take to get daytrana patch out of my system??.my suboxen dr. Wants me to stop the medicine immediately! And i have to return in week in half to do urine screen.. she wanted me to have my phycryitrist to prescribe, not my family.. which i go the day after the test, to see my phycryitrist dr… . Im a single mom, and work full time, and im just really scared….

  4. Hello! I am on prescription Ritalin 27mg twice a day. Unexpectedly, I am being scheduled for a pre-employment physical tomorrow (May 24, 2018). A urine screening for drug test is highly likely. I took my morning dose today about 1030am. I am considering holding off my pm dose today. Will it show up in a urine screening to morrow if I go without tonight?

  5. I recently tested positive for methylphenidate and have never taken the drug but my fiance takes it and may have abused it…is it possible for the drug to enter my system after kissing her after she may have snorted the drug??? It was found to be a very low amount in my urine.

  6. My doctor requires a drug test to make sure I am using my medications appropriately. I tested negative for Ritalin and Tramadol 11 hrs after taking it. Now they will not give me any more prescriptions. Why did I test negative?

  7. My daughter takes 10mg of Ritalin at 5pm by mistake I had drank it with another medication. What should I do the pharmacy is closed? Im drinking alot of water right now. I never took Ritalin before should I worry?

  8. Im suppose to take 5mg ritlian a day I haven’t been taking them like prescription says cause of shift work my old man was in a bad accident and I haven’t slept much I have to go back to work I might get randomly drug tested when I go back I took 4 5 mg pills last nite and today and the rest of prescription was taking every other day for the other days in the month I took 4 yesterday and today to be able to stay awake

  9. My son’s wife has convinced him that since he took Ritalin for a few years from age 10-13 that now at age 21 his anxiety attacks are because of the Ritalin. Is this possible? He was diagnosed with ADHD and treated as a child but hasn’t taken it for at least 7-8 years.

  10. My doctor stopped prescribing me Ritalin after being on it for 5 years. I didn’t take it on my days off and was called in for a urine test and a pill count and my new doctor said it wasn’t in my system and I had to many pills ! It helped me really stay calm and focused at work and with my 3 kids! How could a doctor do this? What can I do to get my mind back to normal after being on for a long time and it worked for me so well. Any advice would me helpful thank you

  11. I take 5mg of Apo-Methylphenidate 3 times a day and have done so for about 8-10 months.but my doctor has started to do urine tests once a month for the last 2 months for all patiients taking any kind of narcotic medication and both times the test was negative for any sign of it. Why would that be? I suffer from several condions so here are all the other medications I’m prescribed..I take endocet 5/325, 3 times a day, cymbalta 60mg once a day, clonazepam 0.5mg cut in half up to 4 times a day and gabapentin 200-300mg before bed. I also go once a week for Marcaine Injections which is used as nerve blockers for chronic pain. Everything shows up in the urine test as it should, except for the Ritalin. I live in Canada. I’m 5’6 and weigh 126 lbs. Thank You in advance for any insight you could give me because I am starting to feel like my Doctor doesn’t believe I’m taking the medication. Sincerely, Janice

  12. I AM. On methadone and i recently had a slip i did some ritalin 10mg will that show on the urnine tests they do its a bottle with strips in it and if it dose how could i lie my way out of it and say it must have been something else any siggestions please lol thanks

  13. If I take a 10mg instant release ritalin and have a urine test about 32 hours later, will it show up? I’m in my twenties, have a high metabolism and am very slim (7% body fat).

  14. If my husband weighs 200 lbs and takes Ritalin and is having blood work done for thyroid how long will it stay in blood. He takes 10mg in morning and 10mg in afternoon

  15. I am prescribed four ten mg tabs daily for narcolepsy. I recently decided to take a two week break because my blood pressure has been higher than usual and I wanted to see if it was the Ritalin or just my stress. I didn’t want to tell my doctor because I thought he might conservatively decide to change my med. I like Ritalin because it is short acting so if I want to take a nap for instance I can skip a dose (rarely do that but its nice sometimes). I called my doc for a refill and was told I had to check in for my annual. The doc asked me to do a UA to be sure I’m taking it. I started taking it and did for ten days then took the test. It came up negative but the doc said he thought it was an error and to take it again in a month. Will my two week break effect the results? Does it need to build up in my system? In other words are they just looking to see I’m taking it or are they looking for certain levels? Before my break I often forget to take it as well?

  16. I had to drive overnight to Tennessee and was given a single 10mg methylphenidate to keep me awake. I may have a drug screen for employment next week and want to know if it will show up. I am 38 yrs old, 5’6″, weigh 168 lbs and consider my metabolism to be slow. I took the pill last night at almost midnight. Thank your

  17. I take 5ml’s of Ritalin 3times a day every day
    2@ 6:30am 2@12:00 and 1@ 4:00
    I’ve failed two drug tests for Ritalin. It seems impossible to me that the Amphetamine and the Methadone came back negative. Can you help me make sense of this. my doctor will no longer prescribe this medicine for me and I truly need it. Thank you!

  18. I am prescribed 10mg. Methylphenid 2 tablets three times a day. I ran out of my medication 2 days before my Dr appt and they did a drug screen ( urine). Will it show up or had it been too long without it?

  19. I am currently on suboxone and may be tested with urine or salava test the next da . I accidentally took 2 of the 10 mg while holding them with my zyrtec they both are small whit . So how long will it take to get out for my drug tes . It was 1 time only

  20. Hello, I took Ritalin Tuesday and just had a mouth swab today and its Friday. Do you think this will come back positive?

  21. hi im dave i took a 30 mg ritalin 2 days ago do you think ill pass my urine test today. it was my first time taking it… realy stressing about it because i have probation today

  22. Hi there, so I was put on methylphenidate 10mlg twice a day and it’s been 6 days and I would like to just not be on this because I am also on effexor and I find its just not helping me since I took it.
    Is it safe to just stop taking methylphenidate. I get that I have to go see a doctor that going to be happening but I’m waiting and would like to know ?

  23. Hi I’m on methadone,ive been clean for almost 7 years and my boyfriend started to use Ritalin yellow 20 Mg’s so I got mad this past Monday and snorted one 20mg,i have a urine today it’s Thursday will it show up…I’m a heavy set girl…cam u help pls.

  24. I’m on ritalin la one x aday and take it everyday and it also has showed up negative.will it show up on a swab better?

  25. My boyfriend took 5 20mg crushing and snorting in less than 20 hours. How long before out of his system? He has job interview in 20 hrs and possible drug test. I’m worried he won’t pass

  26. I have a son that has been on ritalin for a week now what happens if i cold turkey quit and take him off of it?will it still b in his system or be harmful if i quit him cold turkey since its only been a week of taking it.

  27. I have a friend who is pregnant and who sniffs ritalin. My question is can a doctor see with a drug test if your abusing your medication ?

  28. Recently I took a drug screen while being on adderall and it came back positive for cocaine (which I have not touched or even looked at in a very long time) the level was 158 still being clean because it has to be 300+ to be a failed tox. My doctor still said I had touched it or did it within the past five days which I had not but being what he does and how often ppl lie to him he failed to belive me. So I had my other doctor write me rialin instead. Can Ritalin also cause a positive cocaine on a very sensitive drug screen?!? Thank you!

  29. Hi , my wife is addicted to Ritalin & Alchol for 3 or 4 years now & she lies about the matter all the time !! What is the solution to help her ?
    She can be treated at home or should I take her to a hospital ? Thanks

    1. Hi, Ramy. First, your wife should admit that she have a problem. In order to do that, I suggest that you look into the CRAFT model for families and interventions. One NGO called Allies in Recovery has some online reading that can help: Moreover, I’ve read that detoxing is safer if it’s done under medical supervision. Good luck!

  30. Hello. My son has been prescribed 40 mg ridilin LA, for over a year. He has a med check coming up, but he hasn’t been taking his medication. If the med check is 3 days after he was due for a refill, should I worry about them giving him a urine test?

  31. Hi, I have took 30 mlg of ratalin mon. and Sunday. I have a drug test Friday. Will I show positive on my drug test?? pls help me.

  32. When I was a kid in the 80’s i was prescribed ritalin and took it for 4 – 6 years. Was given 10 mg twice a day ( lunch and supper time ) I had adhd, focus and concentration problems, also on the autism spectrum, and had pervasive developmental disorder during that time period. Was taken off it suddently because it made my head shake and it was zombified me and more. I felt the effects wearing down and started realizing over the years as an adult. I wanna get treatment for my condition and want to get ride of the long term effects of the ritalin. Along with any of the ritalin in my system. I think I given too strong of a dose or should have been perscribed something else. What can I do to make this happen?

  33. I have a Ritalin question. I had ADHD, hyperactive, focus and conservation issues, and was on the autism spectrum when I was a kid. I was prescribed Ritalin and was taking it for 4 – 6 years as a kid. It zombified me after a while it started to make my head shake. My dad took me off. Years later in my adult life I felt the effect of that medication wear off. I have been noticing some side effects from that. I think that medication was given to me was too strong and should have been given something else. What can I do to completely get rid of it out of my system. I do wanna get treatment and want the effects gone before I do so. I was given 10 mg at lunch and at night.


  34. Hello there, I am worried, I accidentally took one of my daughters 15mg Concerta this morning.. I grabbed the wrong bottle in the cabinet and popped it in not thinking.. and realized this too late.
    I just tried to make myself throw-up but I was not successful. I worried about how it will make me feel and worried about going for a new hire blood test in about 10 days from now.. Can you help with my questions please. I appreciate your input. thank you

  35. How could I have tested positive on a ua after 7 days? My levels were 2000 the 1st day, 561 3 days later & 154 3 days after that…I had been injecting large amounts & had not drank lots of water…is that why?

  36. Hello I am prescribed 20mg Ritalin, how ever today I took 210mg, I feel fine exept for faster heart rate and really thirsty, but that’s how I normally feel while taking as prescribed, but the one thing that’s not normal is numbness, my thumb and the right side of my face are numb, is this normal and when will it go away

  37. I need my urine test to show positive just for Ritalin how do I dissolve Ritalin into my fake urine or clean urine so’ I need my urine test to show positive just for Ritalin how do I dissolve Ritalin into my fake urine or clean urine so that the Tests shows a positive only for ritalin

  38. What’s the fastest way to get concert outta your system when you’ve been takeing it heavily for 5 days an you have a surprise piss test

  39. Hi,
    My little girl is using Ritalin 10mg. For the school holiday (2 weeks) my doctor advise me its not necessary for her to drink her pill. Now she has the symptoms all over again. Is it possible that the pill is out of her system, and that she has the symptoms all over again?

  40. I ‘ve snorted Ritalin in the past to help me concentrate on my cleaning activities and if I were tiered I would take it to stay awake. I am now facing a hair follicle sample. I haven’t touched it in 2 months and I am not addicted I just used it for a wake up and to concentrate. I am just wondering what are the chances of passing a hair foccile test?

  41. To whom it may concern: I was just prescribe Ritalin 5m a week ago for focus concentration. Since them I’ve notice that it does work but the side affect is that is makes me tired by the end of the day and the next morning I feel really groggy. My question is, can I cut the pill in half to try taken less milligrams and see if this works better for.

  42. I was wondering if I take Ritalin, will it show up on a driver drug test, and how long will it take for me to be clear to drive.?

  43. Ive been taking Ritalin now for over 15 years I was sick with flu like virus for four days when I went to the Dr to have a routine UA done for the suboxone I take he also monitors the Ritalin he told me he saw no trace of Ritalin in my Aaron I explained I was sick for 4 days he told me. Because I’ve been taking it for so long it should still be in my system how can that be I’m on the up and up and honest with him yet the UA showed none in my system

  44. I took a 20mg yellow tab of ritilan how long will it show up in my urine for and what will it show up as in a urine test and will it come back with a false positive for coCaine

  45. I go to a suboxone doctor & they send the urine screens to a lab to be tested, for some reason ritalinic acid keeps coming up on my results I have not taken Ritalin in a long time why is this ritalinic acid showing up on my results?

  46. If you take ritalin in the morning & at noon time and it is suppose to last 4 hours can you have a glass of wine in the evening?

  47. I split a ten milligram extended relise tab with my girl friend and maybe do two or three at most a day and i got a piss test tomorrow. was wondering if you think ill pass so at most i did 15 mg on wen and test is Friday. I have been drinking a lot of water i am about 6 feet and about 190 pounds. do you think it will be out of my system by then. so i did it on wen in the morning time before noon and test is friday at 10. What do u think will happen

  48. I took 3 20mg Ritalin yesterday around 3pm I have a urine drug test today at 7pm will i test positive for amphetamines?

  49. I took a 5mg ritalin on accident about two months ago. Now i have a hair sample drug test on the 11th. Will this show up positive? they say the drug test works through a 1-5 number system and if you are below 5.0 you are okay.

  50. Hi, I’ve been taking ritalin for about 20 years for adult ADD. It has been very beneficial in making my life workable. I metaboluze the medication very quickly and I’m on a high dose of standard release. My doctor is upset because it doesn’t show in a urine screen an hour or two after my second dose of the day and is threatening to stop filling my prescription. Do you have any advice? Thank you.

  51. crush 20 mg ritlian, bring it to doctor go in bathroom pee and dissolve in cup stir with anything it goes clear,and ur pee is warm,,there you go it works and has for me 10 years

  52. I keep my subutex and my son’s methylin 10 mg in the same bottle. Will his medicine show up on my urine screen?

  53. Hello, I took 80 milligrams of Ritalin instant release on a Wednesday night and I took a five panel urine test on Friday at about 12:30. Can you tell me if it will show up? I do not have a prescription and it was my first time taking it in a while. I would love an answer.

  54. Hi I took 3 20 mg Ritalin in a course of 3 days. I took the last one on Saturday and had a urine test done at 5:30 Tuesday morning. Should I pass??? I’m also about 230 lbs and 5’6 Idk if that will make it stay longer but I swear a lot and I stay moving. Please reply ADDICTION BLOG!!! I AM SCARED AND NEED ADVICE!!

  55. I took Ritalin exaclly 3 days ago and took a drug test this morning at the methadone clinic. I’m so amazingly scared because I am on weekly doses and I haven’t had anythingin 2 years. I slipped and now I’m scared I’m going to be kicked out clinic and lose my take homes. Please someone tell me if I’m going to ‘ve okay if you think I passed or not . Please I’m crying hysterically because I’m so scared I screwed my life up,!!!

  56. I had a 12 panel drug screen done and it came back positive for amphedime the only thing I done was a few ritilins almost a month earlier. I’m thinking because I was on my period and it was a yearn test that I tested dirty because of the blood in my yearn. Is this possible? Has anybody herd of this happening? Very confused..

  57. How long does methylphenidate stay in your system? My son has had his urine tested at two different times and he tested negative for taking the drug. He takes 5mg tablet, 2x’s a day – at 8am and again at 12:15pm. When they tested him at 4pm, it doen’t show up through his urine.

  58. I have NEVER took Ritalin before but was given a 25 mg tablet. I plan to take half of it but haven’t yet bc Im on probation so I get pee test, it’s random. I have Narcolepsy. I sleep all the time. People say I’m lazy but I can’t help my sleep disorder. I dont know alot about the disorder! I weigh about 155 lbs. 5″2. I read all comments/ replys before asking but how long would it stay in urine? Thank you ahead of time !

  59. I took one 54 mg tablet of methylphenidate, or ritalin. I am regularly drug tested and I have one coming up. Will the methylphenidate show up as methamphetamine? I am taking a normal 5-panel drug test.

  60. I’ve had SRS (severe reactive scoliosis) since my teens (56). I’ve been taking Ritalin 10mg 2 x 2 d for years (narcolepsy) from my dr. Their office changed their drug testing company 3 months ago & they’re saying I have none showing in my 2 tests back to back even though I take it daily. I’ve been with the same dr for 20 years and he’s dropping me. The first test said none of my 5 meds were showing and he said it had to be a mistake, the last showed everything but the ritilan. Never had any problems until the last 2 months.
    I’m in a small town, the dr’s all know each other and I don’t want to be labeled. Be nice to know and maybe show him why the test is bad besides the lab of course.

  61. Hi Bill. Average daily dosage for Ritalin is 20-30mg, and some people require 40-60mg, but they are taken in divided doses 2 or 3 times a day. I’d suggest you Call the Poison Control Center at 1-800-222-1222 for a free over-the-phone assessment of the risk and dangers, and instructions on what you should do next.

  62. I weigh 140lbs, and took 100mgs within 5 or 6 hours. My muscles are twitching, there’s some tingling, shaking, constantly changing heart ate that I can feel through my entire body. What is next? How long until these symptoms go away?

  63. Hi Jodi. There is no precise answer to your question, people are different, so it’s never the same. You can call a doctor to discuss general concerns around Ritalin use and side effects.

  64. Hey um i’m 15 and i take Ritalin for ADD i’m not sure how big my douse is but i’m pretty sure it’s small i hate Ritalin and one of my biggest problem’s with it is that it stimulates me if it’s in the morning when i’m in school that’s fine but my problem is that i take Ritalin at around 7:30 AM and i could not sleep till 9:00pm or later. Ritalin literally messes up my sleeping scheduled and has come to the point where i was staying up some day’s for 36 hours or so how can i get the effect to wear off more quickly?

  65. Hello Whitney. What’s your current dose? Doctors suggest you avoid breastfeeding during the first three hours after a taken dose (the concentration of the drug is the highest). I’d suggest waiting for four hours after you take your medication and then breastfeed her. If you have any further questions, call the InfantRisk Center at 806-352-2519

  66. I have a 5 month old daughter and I’m right now trying to break her from breastfeeding. She’s taking the bottle pretty good but still wants booby at night. I was perscribed Ritalin before i was pregnant and I’m just wondering how long does it take to get out of the milk glands?

  67. I am prescribed adderall but recently took a ritelin and will have to take a drug test (it’s not sent off to a lab). It’s a quick result urine test. I know my adderall will show but will the ritelin show as a seperatly or will it show up the same as my adderall on those particular test

  68. I am a 72 year old female with diabetes, bipolar 2 with anxiety and ADHD. Medications for all. I have taken short acting Ritalin for 21 years. It seems that Ritalin side effects could exacerbate my
    troublesome Bipolar symptoms. Ritalin dose is 30 mg per day.
    Should I taper from Ritalin with Dr’s help?

  69. i was justbwondering if they can tell by the levels in your urine if you’re abusing it or not. im on 5mg 3x a day but tend to do way more and i got a test today and just wanna know if they’ll be able to tell

  70. I’m prescribed 20mg ritalin 3x day. I messed up and went on a small binge and snorted like 4 days worth.My dr tested me before and I was negative. Dr was pissed. Now I’m not sure if I get tested in 2 days if my levels will be ok. I will not be able to take them for 2 days to get the count right since they do pill counts. I have a friend who gets the daytrana patch [20mg] and she gave me a few. Will wearing them 2 at a time make my levels ok? I’ve never done this before and am scared that I will get busted by dr for abuse. I really normally take them right but had some dumb thinking and messed up.

  71. I snorted one Ritalin 20 mg 2 nights ago. I never took any before that. I have to do a drug test today, should it be out of my system? I weigh 210 lbs. and 6 ft. Tall

  72. Hi Paul. Overall, yes, Ritalin can be detected in a drug test. But, it depends on the test itself and on what urine is being tested for. Ritalin is detected in a intense Urine testing stage, on the kinds of tests usually conducted in the military. Also it depends how fast your body gets rid of it during the day so that’s another reason why it can’t be detected in the common urine tests today. So, I think you’ll be fine, and for more info you can read this article:

  73. Please answer this question and email me with the answer. I admittingly did abuse ritalin the night before a drug test given to me by my pain management doctor, I snorted about 50 20mg pills and was given the drug test the very next day, so I’m worried the doctors will know I abused it, so my question is simple, will the drug test which is sent to a lab show that I abused my ritalin? Please let me know if ritalin is something which will be tested for in a urine test sent to a lab? Please be as detailed as possible and what should my excuse be if they do indeed find that I had a high level of it in my system, I would be very grateful for any answers or advise you can give me. Thank you, sincerely Paul

  74. Irina2525. Call the Poison Control Center at 1-800-222-1222. It’s a number for poison emergencies and you can call to get a free over-the-phone assessment of the risk of overdose. They’ll give you instructions on what to do next.

  75. Ok so I took 1400 mg of ritalin yesterday and its been about 24 hours should I call someone I’m only 14 and weigh 102i did it because I deal with child abuse but know I’m done just really want to still live should i call. Can i still survive if I dont tell anyone or do anything thanks I really need help fast pleas reply to this as soon as possible thanks

  76. I heard that Injecting any sort of prescription drug is dangerous and can lead to infections due to the substance not being specifically made for this purpose. Does anyone else feel extremely nauseas when taking Ritalin on an empty stomach? Also, if I take 15mg of Ritalin (short acting) at 11:00am and drink alcohol at 6:00pm, will I have to worry about possible unwanted drug interaction? I only got prescribed Ritalin a couple weeks ago, so I don’t yet know the effects of taking Ritalin and drinking Alcohol on the same day.

  77. i go to a clinic for suboxone and this month my urine came back positive for ritalinic acid 1475 ng/ml cut off 500 i can not for the life of me figure out how it got there i have been on a drug free progrm for over 10 years and only 1 dirty urine first month ten years ago i am now 61 and have coped along with a lot of other things and i am trying to find sites that will let me read up on what may cause a false positive i don’t have any other explanation i know what it is my son is ADHD and took it when he was young but he is now 36 so i haven’t seen any or touched any in well over25 years. i so i would like some info on sites to read

  78. I chewed up 40 mg Ritalin at 1100 today have pee test Monday will I be clean by then please anwer ASAP thanks today is Friday if I drink a lot of water will it help

  79. If you snort ritalin does it stay in your system as long as taking it normally? If not how long does it it stay In your urine?

  80. I was given a Ritalin from a friend, she knew I wanted to lose weight and had a diet pill. It was a 20 mg….I took it at 4 this afternoon. Now I am freaking out because I may have to urine test tomorrow by 7 in evening ….27 hours later…Is there a chance it will show up? I am taking water pills, taking niacin and drinking cranberry juice. HELP…I made a mistake, now I am so scared.

  81. I took a Ritalin about 4 days before my UA. Will it show up? They’re looking for any signs of drug abuse/use that is not currently prescribed by the physician.

  82. Statistically, how may people out of 1,000 hypermetabolize Ritalin, such that it does not show up in their urine if it is taken as prescribed?

  83. i went off on a stupid juvenile snort binge with my 10 milligram tabs of methylphenidate…ran about 1 50 milligrams of them….i am coming down after my morning lisinipril and a 1 mg. tab of blood pressure is back down…just a little high,… my pulse is down to 99…i called my doctor and asked him to UN-prescribe the 10 milligram tabs of methylphenidate…so i sabotaged that for future unscrupulous use and damage…threw what i have in the toilet..i’m a bit scared at what i did…will i be ok? any suggestions? i feel really dumb and self abusive…anything you might want to add to my thoughtless binge? health risks to watch out for? this part of my addiction came from a good doctor,..but i used them as an amusment park…i’ll be going to sleep soon but please let me know of any suggestions you might add…possibly without shaming me…thanks for the blog!

  84. I took Ritalin 3 days ago. I have to take drug test will it show up in urine and if I drink lots of water will it help any. I haven’t used anything in months.

  85. It’s amazing how Americans have given up their rights. The fourth amendment guards against unreasonable searches and seizures. Taking something from the inside of someones body is definitely a search and seizure.
    When did it become the norm that we need permission from the government to do almost anything. If we think something will help us we should as free men and women be fee to do it. The government should only interfere if we are infringing on someone else s rights.
    With the furture of DNA testing etc. it’s time for people to DEMAND their privacy be protected, including their body fluids.

  86. With regards to Ritalin and dexamphetamine i know these meds will show an amphetamine result on a urine test. Will it also show a methamphetamine result?

  87. #1: will the ritalin be looked at if u just let them no u was prescribed the by my docter…nothing wrong with that.” but what ask is CAN THE DRUG TES PROVE HOW MG’S “YOU’VE BEN TAKEING EVEN, THOW TEST WAS POSTIVE,I WONT U 2 SAY HOW GET proof if ur on it @time of test like at the hospital,doctor office or a work testing ?
    one more thing is is there a test for dopeamean leavel ?? and what is it normally?
    also does my thyroid being dead and must take pill once a day 4 life.,and iv been abl to realize that it was that time i felt like my soil is gone,and it helps me feal alive when i use ritalin or something of 2 that afect. i no it does improve my soul/brings me up 2 a normale unstopabl fealing,meaning i got injiry and i wish i was normall and could controll how i fired off dopeamean ,so i didnt get adhd moodswings. but kinda wont to be “hipper” like i was befor my thyroid thing.. i steal have adhd but just not ablity that was an asset .
    thanks , hope u can understand what i am asking..
    ok hear from u soon.”:jayson

  88. Hi Sara. IF you’re taking methylphenidate as prescribed, it may show up on a DOT 5 panel drug screen as an amphetamine, but as long as your levels are within therapeutic use, the Medical Review Officer will return the drug screen as NEGATIVE for abuse. Just present the prescription to the laboratory. You should be fine.

  89. I Take generic Methylphenidate 36 MG ER with 5 MG regular Methylphenidate 8, Noon and 4 and have been since May 2012. I need to pass a urine drug test and they test for everything, I am 5′ 5″ tall and weigh 155 my metabolish is slow to normal. How long before the test do I need to stop taking my medicine? Is there a way to speed up any traces of it in my system? Thank you – I really want this job – I have ADD and needed medicine for school.

  90. Hi Alison, I certainly don’t argue you doctor’s advice; however, I took Ritalin before and during both of my pregnancies without issue. Both of my girls were healthy, as was I. We had to stay in hospital for the babies to be monitored after birth, just to be sure they weren’t experiencing withdrawal. For that reason, a paediatrician was consulted, and everything was fine. I cannot function without Ritalin, as I take it for Narcolepsy, so stopping was not an option. My girls were, obviously, not breastfed. I was informed that this would make them hyperactive, anorexic, insomniacs. Best of luck to you!

  91. I have stopped taking my ritalin 20mg 3x per day because I am trying to get pregnant but life these past 5 months is overwhelming and I am so unfocused that I am getting very little done. I also have depression and have changed all my meds. I currently only take a prenatal vitamin and welbutrin 100SR, I was taking omega 3’s but ran out about a month ago and although it’s on my to do list it has yet to be restocked. I guess my question is this if I start taking the ritalin again and stop as soon as I find out I am pregnant what would the half life of that be? I would start by taking 10mg 2x per day and I would of course be taking the first response early detection pregnancy test so that I can stop the ritalin as soon as I have a positive pregnancy test. I have been told by 1 doctor that this is a good plan and another that I should not take the ritalin if I want to get pregnant. I Just need some clarification on the half life, so that I can make a decision and move forward. Thank you

  92. Hi alexisnz. If you are taking a urinalysis, it’s possible that Ritalin would have cleared your system before the drug screen five days later. And most methadone maintenance programs are screening for opiates, rather than amphetamines. But you might feel better if you disclose the use to your prescribing doctors. It’s really a decision you alone can make.

  93. hi i took a small snort of ritalin aproxamatly 4days ago im on the methadone programme and they have asked me to go in for a urine drug screening tomorow. will the ritalin be cleared out by tomorrow?it is the first time ive taken ritalin in years and it was only a small lineof a 20mg pill!! your help would be much appriciated!!

  94. Hi again, Elisha. Certain prescribed and over-the-counter medications and foods might generate false negative results for different substances. False negatives might also result from laboratory error. I’d check in with your doctor again and request a retest. Also, ask if ANY metabolites were shown as a result of the test, or if the test came back with NO sign of amphetamines. It’s always possible that your sample was mixed up with someone else’s!

  95. he is only testing for presence of Ritalin not how much and i honestly forget to take the others a day … however im working on a plan so i wont forget them anymore…but with that aside i do take them everyday so im unsure as to why i am testing negitive and other then a urine test is there any other way he could test… oh he also checks for a narcotic which im prescribed that always shows but not the other. thanks for the advise

  96. Hi Elisha. I wonder if your doctor is testing not for the presence of Ritalin, but for the exact dosage you SHOULD be taking? Sometimes people will get a Ritalin RX and then sell it to others. Your doctor might suspect that you are not taking Ritalin as prescribed (which you aren’t) and then stop treating you. So, take all your Ritalin as you should, and at the very least…tell your doctor about the exact doses you’ve been taking.

  97. I am prescribed 20mg sr 4x a day, I generally remember to take 1-2 a day … eitherr way i take them everyday and have only been on them for about 2 months they have improved life greatly,however i have to be tested every two weeks (urine test) for my doctor. i have been tested a total of 3x and all 3 came back negitive . I’m confused as to why they keep being negitive .. i also take 7 other meds a day , metaphormin , vitamin b, vitamin d, daposone, tecta, norlutate, and singular… could these other meds be affecting the results?

  98. Hi Kathy. I’d suggest that you take a list of your current prescriptions to the Medical Review Officer in charge of drug testing. It’s possible that the other medications are interfering with methylphenidate and creating a false negative test. Request a re-test.

  99. Hi I took 27 mg er Ritalin prescribed and showed up negative…took it at noon then had blood at around 4pm. I am on tons of meds for chronic illnesses and had my urine show up negative before. What is going on?? So weird. Blood and urine negative.??

  100. Hi Jennifer. That sounds strange. Do you take any other medications which might interfere with the drug screen results?

  101. My son & I both take 10 mg Ritalin twice a day. The doctor done a urine screen on us to check for it on our system. The screen came back negitive. We take the medication everyday as directed. I don’t understand why it didn’t show up in the urin screen. The bottle reads methylphenidate 10 mg tablet. Can you help

  102. Hi Larry. If you are using Ritalin as prescribed, and have been tested by your doctor’s office or your employer, methylphenidate will show up under expected min and max cutoff levels. Why do you need methylphenidate to show up on the urine analysis?

  103. I want the methylphedidate to show up on a drug test so if i took only one 10 mg methylphedidate at 8 am and was tested at 2:00 pm. the same day will it show up on that urine test?

  104. Hi Will. To be honest, I’m not sure. I do know that chronic amphetamine use shows up during hair analyses 90 days previous to the test itself. But if you’re talking about one time, low dose use…I’m really not sure. Can you report the use in advance of he test in the interest of transparency and face the possible consequences?

  105. I took 10mg in one yesterday, and 20mg in today. Is that enough to show in a drug test trough a hair sample that is going to be taken in about a month from today?

  106. Hello Alison. What does your doctor say about this issue? Ritalin should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

I am ready to call
i Who Answers?