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How long does XTC stay in your system?

ARTICLE OVERVIEW: MDMA can be detected in urine for 2-20 days after last use. Learn more about drug detection windows for ecstasy here, with testing windows for blood, saliva, and hair samples below.



How Do You Take Ecstasy

Ecstasy, Molly, or XTC are street names for a synthetic drug called 3-4 methylenedioxy methamphetamine, MDMA. MDMA is an illegal federal drug classified as a Scheduled Isubstance. It is primarily taken orally. Most people take it as a capsule or tablet, though some swallow it in liquid form or snort the powder. Additionally, the primary acting agent of amphetamine can also be dissolved and injected.

Still, you don´t know who’s preparing the pills, capsules, or powders. The drugs that are sold as XTC and supposedly Molly or sold as “pure” may contain other drugs instead of or in addition to MDMA. Much of the Molly seized by the police contains additives such as:

  • Cocaine
  • Ketamine
  • Methamphetamine
  • Over-the-counter cough medicine
  • Synthetic cathinones “bath salts”

These substances may be extremely dangerous, especially if you don’t know what you’re taking.

Main Uses

Although MDMA was originally patented as an appetite suppressant and used in psychotherapeutic settings, this drug has no medical use and is illegal in the United States.

MDMA was initially popular in the nightclub scene and at all-night dance parties, but the drug now affects a broader range of people who more commonly call the drug Ecstasy or Molly. It is used mainly in party, rave and dance scenes, as it can induce feelings of empathy and connectedness in the user.

Peak Levels and Half Life

MDMA is readily absorbedfrom the gastrointestinal tract. [2] Onset of action is within 30 minutes and peak serum levels occur after 1 to 3 hours. Desired effects may last only an hour or more, depending on dose. Other general effects of taking XTC last about 2-3 hours.

Still, MDMA is rapidly absorbed in and passes through the body quickly; the half-life of MDMA is around 7 hours. Like amphetamines, alkaline urine can increase the half-life of MDMA to 16-31 hours.

Drug Test Detection Windows

Ecstasy can be detected in various biological samples such as blood, hair, saliva, and urine. However, the time it is detected varies by sample. [3] Following are the common methods of drug testing and detection windows for each.

Blood Tests for MDMA

MDMA can be detected for a period of 3 days to 4 weeks after the last dose.MDMA is metabolized to 3,4-methylenedioxyamphetamine (MDA), which is a metabolite reported in blood and plasma drug screens. Drug testing of blood samples is usually only performed in emergency situations.

Hair Tests for MDMA

MDMA can, on average, be detected in hair for up to 90 days after the last dose. The longer the hair sample, the longer the detection window. Hair drug tests have the advantage of detecting substance use days to months, or in some cases, years, later. Because of the long period of detection for hair samples, they are useful for detecting chronic substance use, understanding the duration of a patient’s drug use over the long term, and indicating periods of abstinence. Conversely, hair testing is not helpful in detecting sporadic use when weekly or even monthly drug testing is required as part of a drug treatment plan.

Saliva Tests for MDMA

Ecstasy can be detected in saliva for up to 3 days after the last dose.Oral fluid monitoring efficiently detects single, recreational 70-150mg MDMA. The limits of quantification are 5ng/ml for MDMA and MDA.

Urine Tests for MDMA

MDMA and its metabolites can be detected in urine samples for 2 to 20 days after the last dose.Urine drug screens are most frequently used to identify MDMA use. Urine drug screening tests are made to be sensitive to amphetamine or methamphetamine and can detect compounds including both MDA and MDMA. Standard cutoff concentrations for screening are 500ng/ml for positive tests.

What If I Test Positive?

If you failed a WORKPLACE drug test, you may be able to oppose drug test results as mistaken. But after this if the confirmatory test result is positive you may face problems with your employer and with the law, depending in what state you live. Check out the ACLU’s compilation of state-by-state drug testing in the workplace laws below. [4]

If you failed a CLINICAL drug test and you feel that your test result is incorrect, make it clear to the supervising physician what medications are you taking. Then, you can request to retake the test or propose a confirmatory test. In the end if it´s positive, you could lose your health care benefits and but you could also end up in jail depending where you live.

If you failed a STUDENT drug test, don´t worry probably you won’t go to jail…but it’s still possible. Instead, you could lose educational benefits, and the positive screen would leave anindelible mark in your criminal record. This kind of test is not meant to punish students who use illicit drugs but to prevent future illicit drug use.

False Positives

Are false positive drug screen possible with MDMA?

Yes, false positives are expected due to the structural similarity with other types of amphetamines, including:

  • Ephedrine
  • Pseudoephedrine
  • Chlorpromazine
  • Promethazine

Therefore, experts recommend performing a confirmatory test of a Gas Chromatography – Mass Spectometry in order to confirm or reject the possibility. Cross reactions to MDMA were also reported with non-similar molecules such as ranitidine, antidepressants such as atomoxetine and bupropion and antihipertensives such as labetalol. [6]

Home Tests

There is new single use kit that contains five test strips for a home drug test for the prescence of MDMA. Test strips are rubbed or wet with fluid from the suspected misuser. It takes just three minutes to detect methamphetamines (such as MDMA or ecstasy) in urine samples and other less obvious sources, such as sweat on clothing.

The problem with this kind of test is that cross reactivity will other chemical molecules is possible. Additionally, the results of MDMA home drug kits are qualitative. This is why aconfirmatory test is in order to produce aquantitative result. Confirmatory tests are supervised by specialized drug testing laboratories.

Addiction Liability

So, is ecstasy addictive? Taking consecutive single doses of XTC as effects begin to wear off is typical of weekend use. But is taking XTC on the weekends setting you up for a weekday crash? And if you use MDMA every weekend…can you get addicted to it?

Yes, addiction to any drug includes characteristics of compulsive use despite negative consequences and mental dependence on the drug. The same is true for XTC. However, patterns of physical and/or psychological dependence are still unknown. And research results vary on whether MDMA is addictive, or not. [7] Experiments have shown that animals will self-administer MDMA, an important indicator of a drug’s abuse potential although to a lesser degree than some other drugs such as cocaine.

Additionally some people report signs of physical dependence during cases of addiction, including the following withdrawal symptoms:

  • Fatigue.
  • Loss of appetite.
  • Depression.
  • Trouble concentrating.

Get Help Now

If you’ve been taking XTC over a long period of time, the body and brain adapt to its presence. You can start to develop physical tolerance to MDMA, needing to take more of it to get similar effect. But you may also develop a mental dependence on MDMA in order to feel normal.

If you think that you have a problem with XTC, you probably do. So, if you think that you can’t live life without XTC, it’s time to seek help.

More Questions About XTC

Please go ahead and leave us your questions and comments about using MDMA here. We can help you find local treatment, or can answer other XTC questions personally. You are not alone!

Reference Sources:
[1] DEA: Drug Schedules for Illicit Substances
[3] Child and adolescent psychiatric clinics of North America: Objective Testing: Urine and Other Drug Tests
[5] NCCIH and Medline Plus information on amphetamines
NCCIH and Medline Plus information on amphetamines
NCCIH and Medline Plus information on amphetamines
NCCIH and Medline Plus information on amphetamines
[6] Medline Plus information on non-similar MDMA molecules
Medline Plus information on non-similar MDMA molecules
Medline Plus information on non-similar MDMA molecules
Medline Plus information on non-similar MDMA molecules
[7] NIDA: Drug Facts on Molly, MDMA, and Ecstasy

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10 Responses to “How long does XTC stay in your system?
6:52 am September 1st, 2012

my 17year old daughter is using ecstasy and taking Molly’s. I am scared! I need to Stop her, convince her this path isn’t THE path for her. I am going to give her a home drug test. How can I parent her with out losing her?

11:22 am September 1st, 2012

Hi Diane.

You ask a great question. And one which many parents can relate to. Personally, I think that parents need to risk “losing their kids” by setting very clear limits about drug use, and enforcing them by sending kids to treatment programs if drug use continues. I’d suggest a few things:

1. Check out the website called theantidrug [dot] com, which is sponsored by The National Youth Anti-Drug Media Campaign, itself a program of the ONDCP. There are MANY resources here and guidance for parents in your situation.

2. Seek information about local teen drug programs. You can also call 1-800-662-HELP and seek information for drug treatment in your area, as well as advice on how to intervene in your daughter’s case.

3. Call treatment centers and ask about family interventions, and how you can best address the issue. Good treatment centers will have a psychologist or trained addiction professional on hand who can help you plan and execute an intervention.

4. Seek help with Al-Anon. It’s not just for loved ones of alcoholics!

5. Find a certified mental health therapist who specializes in family addiction issues and discuss how you can maintain a health outlook, as well as plan actions to help your daughter. You DO NOT want to continue enabling the behavior, but you also want to remain open to your daughter’s pain and difficulty. Do not underestimate how much support YOU will need in this time.

6. Educate yourself on the nature of drug abuse and possible addiction. Know that you cannot change your daughter, but you can inform her of your concerns.

8:47 am November 26th, 2012

Hello, I took XTC several times already, but try to keep months between it. I myself am not scared for addiction because I am aware of what can cause mental addiction, and I do know that there is some risk involved.

But about the damage, by taking how much can you damage yourself? How do you notice the damage? And isn’t strong alcohol much more dangerous than XTC, since MDMA can only kill in rare cases, and death of alcohol is a lot more common, and damages much quicker.

9:41 am November 27th, 2012

Hi Dario. The risks of MDMA are actually much like other stimulants, and can affect the cardiovascular system. MDMA can increase heart rate and blood pressure, as well as affect the regulation of temperature in the body. Check out more on MDMA health effects at the National Institute of Drug Abuse here:

4:48 pm September 18th, 2013

I was wondering how quick mdma can be detected in ur urine. I only did a little before I was surprised with random dot drug screening. Everyone has information on how long it will be I ur system.. I want to know how fast it will show up in ur urine.. Please help me.

11:42 am September 27th, 2014

My son has used weed and suspected ( Molly) for the last two years.He has made impulsive decisions and involved himself in criminal activity, I assume to support his habit . We’ve tried substance abuse treatment and counseling for him, pursued treatment center inpatient treatment but turned away 3 times because we were told his test only tested positive for marijuana so they could not place for marijuana only. He is locked up again and we are still seeking help for him before he ruins him completely physically and psychologically. We can clearly see how it is affecting him? How can we get help for him now while he is locked up. This kid is intelligent with lots of potential. We want to help but feel helpless.

Mr, Smith
11:20 pm October 8th, 2014

If you were to take about .8 of a gram over a few hours on a friday night, finishing at about 2:00 A.M Saturday morning, Would it be out of your system by wednesday by 2 PM? After drinking atleast a gallon of water a day and profuse sweating?

Jon d
7:23 am November 13th, 2014

Hi I Have been using molly for about six months now and have tryed to stop several times using Molly by I always seem to relapse could someone please help me stop or lead to to a rehab that will help me stop

11:58 am November 18th, 2014

Hi Jon d. Call the free number 1.800.725.0922 to get addmited into treatment. You can also look for treatment using this locator: or this one: To find ways you can cut costs, explore your options here:

9:58 am June 15th, 2017

I took half of an ecstasy pill nearly a month ago and I have to have a blood test today to check for any illnesses will they find any traces of the pill in my blood???

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