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How Long Does Methamphetamine (Meth) Stay in Your System

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  • 16th November 2017

What is Methamphetamine

Methamphetamine, also known as meth, crystal meth, ice, shards, and glass amongst others, is a potent central nervous system (CNS) stimulant used in the treatment of ADHD and obesity. It is also one of the most popular recreational drugs, and its use as such has eclipsed its medicinal application somewhat.




How long does crystal meth last in your system

Orally administered methamphetamine has elimination half-life duration of 6.4-15 hours. Per the 5.5 half-life rule, it may be concluded that orally ingested meth will be eliminated from the body between 1 day 11 hours 12 minutes and 3 days 10 hours 30 minutes.

Intravenously administered meth has a comparatively long half-life of 12.2 hours, thus being eliminated from the body around 2 days 19 hours 6 minutes.

The above timeframes are average estimates; in reality, the user’s age, liver and kidney conditions, metabolic rate, the frequency of usage, and the amount of meth taken, all have crucial roles to play in deciding how long meth is going to stay in the system.

How long is meth detectable in urine, blood, saliva and hair follicle for a drug test

Urine 72 hours
Blood 1-3 days
Saliva 1-4 days
Hair Follicle Up to 90 days

How to pass a drug test for ‘meth’

  • Drink Plenty of Water: Staying hydrated makes you urinate more, thereby aiding in meth excretion.
  • Work Out: Exercise increases metabolism, thus shortening the time required for the elimination of meth.
  • Eat foods with high acidic content: Blueberries, cranberries, nuts and vinegar are some foods easily available; they acidify your urinary pH and help in methamphetamine excretion.

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