How Long Does Amphetamine Stay in Your System?

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Trying to determine exactly how long amphetamine is detectable in the body depends on many variables, including which kind of drug test is being used.

Amphetamine—also known as Biphematine, Delcobase, Desoxyn, Obetrol, Reds, Meth, Black Beauties, Crosses, Hearts—can be detected for a shorter time with some tests, but can be "visible" for up to three months in other tests.

Other factors that come into play in tests being able to detect amphetamine is how frequently it has been taken, how much was taken, and the quality or potency of the drug.

Detecting amphetamine in the system is also dependent upon each individual's metabolism, body mass, age, hydration level, physical activity, health conditions, and other factors, making it almost impossible to determine an exact time amphetamine will show up on a drug test.

The following is an estimated range of times, or detection windows, during which amphetamine can be detected by various testing methods:

  • Amphetamine can be detected in a urine test from 2-5 days.
  • Blood tests for amphetamine can detect the drug for up to one to two days.
  • A saliva test can reveal amphetamine for 1-5 days.
  • Amphetamine, like many other drugs, can be detected with a hair follicle drug test for up to 90 days.

Avoiding Overdose of Amphetamine

One reason that it is important to know how long amphetamine remains in your system is because of the risk of overdose. Here are some of the symptoms of a possible amphetamine overdose:

Amphetamines Can Be Addictive

Another danger of taking more amphetamine than prescribed is that it can become addictive. When taken as prescribed for a health condition, amphetamines are not usually addictive, but when misused—to get high or to improve performance—people can become dependent upon them.

The body can build up a tolerance for amphetamines, meaning it may require more of the drug to achieve the same effect. Taking more to reach the high or performance level you once experienced can lead to addiction.

Symptoms of amphetamine withdrawal include:

  • Strong cravings
  • Mood swings
  • Lack of concentration
  • Headaches
  • Aches and pains
  • Increased appetite
  • Sleep disturbances

If you experience any of the above symptoms when you try to cut back or stop your use of amphetamines, you should seek medical advice immediately.

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Article Sources

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  1. Verstraete AG. Detection times of drugs of abuse in blood, urine, and oral fluid. Ther Drug Monit. 2004;26(2):200-5. doi:10.1097/00007691-200404000-00020

  2. National Institute on Drug Abuse. What is methamphetamine? Updated May 2019.

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