According to the DEA, methamphetamine use is on the rise in the U.S.1 Since meth is bad for health and can cause serious issues, it is important to know how long meth stays in your system. The substance usually clears from your system in around 3 days, but traces can linger for up to months, depending on how frequently you use it and the method of administration.2
If you or a loved one is suffering from methamphetamine addiction, Nurture Nexus Recovery Center offers meth addiction treatment to help you lead a healthy life.
Methamphetamine Eradication Timeline in the Body
The course of methamphetamine in the body can be broken down into several stages: absorption, action (the “high”), metabolism, and excretion. Like most substances, it is primarily metabolized in the liver, broken down into metabolites, or remains unchanged and eventually clears from the system.3
Some tests can pick up on these metabolites long after all of the methamphetamine has been broken down. The standard timeline for testing positive is:
Saliva
Methamphetamine use can be detected in the saliva 10 minutes after ingestion and remains detectable up to 4 days. There are chances of testing positive even when you smoke the substance, as it is absorbed into the saliva as well.4
Blood
Blood tests tend to pick up meth use after the dose was administered and can detect trace amounts up to 3 days later.5 However, if you have liver issues or generally bad health, the detection period can last up to a week.
Urine
Since methamphetamine and its metabolites are excreted from the body partly through the kidneys, urine tests pick up on the drug 4 hours after last use. The detection window is generally between 3 and 7 days, depending on how healthy your kidneys are.6
Hair
Like most illicit substances, methamphetamine traces linger in your hair for up to 90 days. If you’ve used the drug rarely, the trace amounts will be on the lower side; however, frequent users can test positive for longer.7 Hair testing is uncommon, except in severe cases.
What is Methamphetamine Half-Life & Metabolism?
The half-life of a drug is the time it takes for half of the administered drug to be eliminated or broken down by the body. So, the breakdown for a 10mg dose would look something like:
- Original Dose: 10mg
- 1st Half Life: 5mg
- 2nd Half Life: 2.5mg
- 3rd Half Life: 1.25mg
- 4th Half Life: 0.75mg
- 5th Half Life: 0.375mg
- 6th Half Life: 0.187mg
- 7th Half Life: Elimination
Even after several half-lives, small amounts remain until fully cleared. Studies suggest that methamphetamine’s half-life is anywhere between 6 and 17 hours, depending on whether the substance consists of the D or L isomer.8
Methamphetamine Metabolism
Meth is metabolized primarily by the liver. One of its metabolites is amphetamine. Studies show that less than 30% of the parent methamphetamine is converted to amphetamine; the rest is excreted mostly unchanged. Most of the meth and its metabolites are excreted through the kidneys, but it can also be lost in saliva, sweat, and other bodily fluids.9
5 Factors Affecting How Long Meth Stays in Your Body
Not everyone’s body clears methamphetamine in the standard 7-day window. Some people can test positive even a month after last use, based on their health, drug history, and metabolism. The five most important factors that affect how long meth stays in your system include:
1. Frequency of Use
Studies show that frequently using methamphetamines over a long period of time causes your body to hold onto the substance for longer. Chronic use of the substance leads to the accumulation of the drug and its metabolites, making it harder for the body to excrete it.10
2. Potency of the Substance
If the methamphetamine you’re consuming is highly pure or potent, it will stay in the body for longer than doses mixed with other substances. Meth with over 90% purity tends to cause damage to the body and also slows metabolism.10
3. Your Overall Health
The general fitness and overall health of your body impact how easily meth will be cleared from your system. If your kidneys and liver aren’t functioning well, the drug will linger in your blood for longer since it won’t break down and be excreted as fast as it typically should.
4. Method of Administration
Smoking or injecting leads to faster absorption and higher concentration as opposed to ingesting it. The method of administration impacts the bioavailability of meth and changes its course in the body.11
5. Your Metabolic Rate
Based on your health, exercise levels, and many environmental factors, your metabolism might slow down. A slower metabolism means your body won’t effectively break down methamphetamines and might hold on to traces for weeks longer than others.
What Does Meth Withdrawal Look Like?
Methamphetamine withdrawal tends to kick in a few hours after the last dose of the substance. It’s not always as immediately life-threatening as with some other substances, but the psychological distress and physical symptoms can be severe.12
Early Withdrawal Stage
The early withdrawal stage lasts from day 1 to 3. It is primarily marked by symptoms such as:
- Increased sleep or hypersomnia
- Cravings for meth
- Increased appetite
- Mood swings and irritability
- Suicidal thoughts & depression
Mid Withdrawal Stage
The mid-withdrawal stage (day 3-10) tends to be difficult for most people since the physical symptoms begin to get more intense, and detox may impact daily life. Some symptoms include:
- Headaches & dizziness
- Body pain and muscle aches
- Vivid dreams & nightmares
- Lack of concentration
- Sleep disturbances
Late Withdrawal Stage
The last stage of withdrawal starts after day 10 and can last up to a month. The patient isn’t in any immediate danger, but this stage is very uncomfortable for most since the psychological symptoms begin to take over. People typically experience:
- Depression & anxiety
- Frequent mood swings
- Inability to sleep
- Heightened cravings for meth
- Feelings of isolation
Expert Opinion on Methamphetamine Use
“Meth use is a growing issue in the U.S. The severity of symptoms, along with the development of severe tooth decay or meth mouth, may break the confidence of a patient. Proper addiction treatment and dental consultancy can help bring life back to normal. However, it is essential to act fast since methamphetamine use deteriorates the body and can have lasting effects.”
Dr. Oluwole Popoola
Treatment Options For Methamphetamine Addiction
Methamphetamine addiction requires structured treatment that is both medically and psychologically focused to correct addictive behavior and cater to symptoms, too. Most treatment options consist of:
Medically Supervised Detox Programs
Meth detox tends to be painful for patients and can take longer based on how frequently they’ve been using the substance. Medical supervision during detox helps reduce withdrawal symptoms and prevents excessive pain.13 Some clinics offer residential programs, while others work with external detox facilities to cater to patients.
Medication-Assisted Treatment
Currently, there are no FDA–approved medications specifically for methamphetamine addiction in many jurisdictions, but research is making progress. However, some programs use medications to address the symptoms that accompany addiction and for cases of co-occurring disorders.14
Behavioral Therapy
Psychotherapy or behavioral therapy options are the most common approach for methamphetamine addiction treatment. Most treatment centers use a combination of cognitive behavioral therapy, dialectical behavior therapy, motivational interviewing, and other methods. This helps to correct addictive behavior and promote safe coping mechanisms that encourage recovery and prevent relapse.15
Find Texas’s Top Methamphetamine Addiction Treatment Center
Meth abuse in Texas is at an all-time high, with most cases often leading to ER visits and overdoses. Nurture Nexus Recovery Center offers professional methamphetamine treatment to promote recovery while addressing withdrawal symptoms and side effects.
All of our treatment options are fully insured, as we believe in providing accessible and affordable addiction treatment for all. Call us at (214) 838-7488 or contact us to get the help you need.
Frequently Asked Questions
Q.1 Can Meth Withdrawal Kill You?
No, methamphetamine withdrawal doesn’t kill you unless you have complications from prolonged drug use. In many cases, withdrawal can be medically managed and catered to prevent any discomfort or pain.
Q.2 Does Meth Stay in Your System Longer if You Do Other Drugs?
Yes, doing many drugs at the same time weakens your body and impacts your metabolism. This makes it harder for your body to eliminate methamphetamine as effectively as it usually does.
Q.3 What Is the Length of Time for Detecting Stimulants in Urine?
Prescription stimulants tend to clear from your urine within 3-5 days, but illicit stimulants such as methamphetamines can take longer. The detection period for urine tests can last anywhere from 7 days to several weeks or more.
Q.4 Are There Any Medications to Get Rid of Methamphetamines From the Body?
No, medications cannot help your body clear methamphetamines. Instead, focus on a healthy lifestyle since it is excreted through sweat and urine. Increasing your exercise levels and improving your diet can potentially make a difference.
Additional Resources
- How Long Does Molly Last in Your System? Metabolism & Detection Timelines
- How Long Does Gabapentin Stay in Your System?
- How Long Does THCA Stay in Your System? Metabolism & Detection Timelines
- How Long Does Fentanyl Stay In Your System?
- How Long Does Adderall® Stay in Your System?
- How Long Does Suboxone® Stay in Your System?
