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How long do drugs stay in your system?

What is a good list of the types of drugs and how long they stay in your system? This would depend on the types of test e.g. urine, blood, and hair tests.

Medically reviewed by Drugs.com. Last updated on April 18, 2019.

Official Answer

by Drugs.com

In general for those who want to find out how long drugs stay in your system the answer is not simple. Many factors influence how long a drug remains detectable

For example:

  • Amount and frequency of use
  • Metabolism
  • Weight
  • Age
  • General health
  • Drug tolerance
  • Hydration state

The following resources should help:

These links will give you time ranges based on upper and lower boundaries. They also explain types of tests used and provide good drug information.

See also: How long does Marijuana stay in your system?

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