Meth: How long does it stay in your system?

Meth intake has detrimental effects on the physical and psychological state of the user. The harmful agents in meth create rapid hormonal and emotional changes in the body. These changes are difficult for the body to sustain in the long run, thus resulting in the permanent impairment of the body. So, how long does meth actually stay in your system?

What is Meth?

Methamphetamine is an extremely addictive drug that is manufactured illegaly. A stimulant, meth targets the central nervous system, causing a rapid increase in action within the body. Known by its nickname, Speed, meth increases the level of dopamine in the brain. This increase in dopamine causes the brain to function differently, while leaving the user wanting more.

Crystals of Meth
Methamphetamine Crystals

Phases of Meth Use

The consumption of Meth results in a complete change in the human system. Its impact on the consumers overall exteriors and psyches can be divided into the following stages.

  • Phase 1– Rush: The initial impacts of Meth can be felt within some minutes after consumption and remains active till 30 minutes, this is the peak of concentration. This is normally experienced if the drug is injected or inhaled.
  • Phase 2– Elevated: This period lasts from 4 to 15 hours. In this phase the user is alert, aggressive, and confident; he moves forward in a detail oriented approach and works towards achieving his goal.
  • Phase 3– Splurge: This is basically not a feeling created by the drug itself but is the name given to an addict’s habit of taking in meth in short spans. It is done to remain in the first two phases for a long time period. Each dose reduces the joy and impact of the initial phases. This phase can continue anywhere between 10 to 15 days.
  • Phase 4– Altering and bang: This is where the addiction starts showing its true colors. The person hankers for more and more. The behavior becomes violent while the body movements and emotions become out of control!

Meth in the System

As quickly as meth impacts the body, the same rush it has in the initial phases to leave the body. Almost half the consumed substance leave the body within 10 to 12 hours of consumption. The rest is broken down by the liver in the form of amphetamine metabolite which leaves the body through different channels within altered time frames. The time frame during which a laboratory test can detect the use of meth through each channel are:

  • Urine: 2 hours to 4 days for a normal consumer while in the case of a heavy addict it can range to almost a week.
  • Blood: One hour to three days. In case of injecting the lower level will reduce to some seconds while in the case of smoking to some minutes.
  • Saliva: 10 minutes to almost 3 days.
  • Hair: 2 to 3 months.
Meth in system

Factors In the Body and System

The impact Meth has and the amount of time it requires to leave from the human body is heavily dependent on the consumer’s health and other environmental factors. These include:

The release of Meth from the body is directly proportional to:

  • The quantity of Meth consumed during the last binge.
  • The number of times the consumption is done, the number of Meth cycles in a day.
  • Metabolism speed of the consumer
  • The overall health of the user and fitness of the organs


The release of Meth is indirectly proportional to the following factors:

  • The proportion and possibility of the use of Meth with alcohol and other drugs.
  • The channel through which it was made to enter the body.
  • The age of the addict
  • Time interval between the doses

Meth and Addiction

Many people across the world struggle with meth addiction. Similar to other drugs, meth is extremely addictive. So, understanding addiction signs is an important first step. Luckily, there are many treatment options for those who may be struggling with addiction.


Getting meth out of your system for things like a job interview may require a quick fix. However, beyond just sobering up, getting off of drugs entirely is a much healthier and safer long-term option. Meth use is on the rise in U.S. and beyond it’s addictive nature, meth also poses serious short and long-term health effects. You can reach out to us anytime if you have questions or know someone struggling with meth addiction.