How long does methadone stay in your system?

Methadone is a generic name for a drug and many brands manufacture the drug. The common drug brands are Methadose or Dolophone. Methadone comes in the form of 5 mg. 10 mg as well as 40 mg tablets or they can come as oral solutions as well as intramuscular injection. The drug works on a certain part of the brain as well as the spinal cord. It blocks out the “high” that is caused by taking drugs like heroin and other opiates. The cravings that are felt by most drug addicts and the withdrawal symptoms that are exhibited are usually caused due to the use of opiate. The action of the methadone drug is similar to man-made medicines which fall in the morphine or opioids category. The substances that are derived from the opium plant directly such as morphine, codeine and heroin are known as opiates. How long does methadone stay in your system? Hopefully this article will clarify this question definitively.


how long does methadone stay in your systemMethadone is a drug that is used in order to treat the addiction of those who have been under the influence of opiates. If the drug is taken once a day in the prescribed dosage, the opiate withdrawal occurs within a time span of 24 hours to 72 hours. That is how long the methadone stays in your system. That helps to decrease the chance that an addict may suffer a relapse. Thus, this drug is considered as an effective way of treating those who have been abusing opiate drugs like heroin and others.


The drug methadone is used to block out the addiction that develops to substances referred to as opiates. It is a treatment that is optimal for opiate addiction. It helps to reduce the cravings as well as withdrawal symptoms that are witnessed. The intake of drugs like heroin led to a rush or a high sensation. That is a euphoric sensation which is brought on by the opiate drugs and many people get addicted to it. When the methadone drug is taken, it helps to block out the high and the intense euphoria that is experienced with the help of opiate drugs. The physical as well as psychological highs that are experienced as well as lows that are caused by opiates are stabilized by the administration of methadone. There are certain side effects of the drug methadone:

  • Drowsiness
  • Lightheadedness
  • Weakness
  • Euphoria
  • Difficulty in breathing, urination
  • Constipation
  • Dryness of mouth

To counter these side effects, one needs to take adequate rest and take in plenty of fluids. That will ensure that you do not get constipated. A well balanced and natural diet will keep the side effects at ease. You may also develop skin itching.


Many of you might wonder how long does methadone stay in your system as you might be getting ready to go for a blood test or a screening test. It is a drug that is long acting; it stays in the system for a long time. Methadone is generally detectable in urine for up to 5 days after last dose. The dosage has to be given and adjusted with caution and overuse can lead to abuse of the drug. One needs to adhere to the instructions of a drug specialist. However, if the patient has been taking methadone on a daily basis for a prolonged period of time methadone can be detected in urine for up to 2 to 4 weeks.