Meth Addiction: Signs, Effects and Withdrawal
Methamphetamine use disorder is a treatable medical condition in which a person keeps using methamphetamine, a powerful lab-made stimulant, even as the drug harms their health, work, relationships and daily life.
Methamphetamine changes the brain and body, produces visible signs of use, and brings withdrawal and at times psychosis. The mind recovers more slowly than the body, and behavioral therapy leads the treatment of methamphetamine use disorder.
Key Takeaways
- Methamphetamine withdrawal symptoms peak 2 to 3 days after the last use and may last for a week, according to the National Institute on Drug Abuse.
- Craving outlasts the other withdrawal symptoms. In a 2010 inpatient study, low mood and psychotic symptoms faded within a week, while craving continued to at least week 5.
- Up to about 40% of people who use methamphetamine experience psychotic symptoms. Psychosis with violence, threats of harm or agitation that cannot be calmed is an emergency: call 911.
- No medication has FDA approval for methamphetamine use disorder. The 2024 ASAM and AAAP guideline names contingency management the current standard of care.
- Montana DPHHS reports that methamphetamine was identified in 48% of Montana drug overdose deaths in 2023, 89 of 185 deaths.
If you need help now
For a medical emergency, including a suspected overdose or a withdrawal seizure, call 911.
For a mental health or suicide crisis, the 988 Suicide and Crisis Lifeline is free, confidential and available 24 hours a day. Call 988, text 988, or chat online at 988lifeline.org. Spanish-language support is available by calling 988 and pressing 2 or by texting AYUDA to 988. Deaf and hard of hearing callers can connect through ASL by using the videophone option at 988lifeline.org.
Substance use disorders are treatable conditions. Most people who receive treatment improve, and returning to use after a period of abstinence is a common part of the course of the illness rather than a sign that treatment has failed.
What is methamphetamine use disorder?
Methamphetamine use disorder is the diagnosis for a pattern of meth use that keeps going despite clear harm. The DSM-5-TR classifies it as a stimulant use disorder, and a clinician diagnoses it when a person meets at least 2 of 11 criteria within 12 months.
Methamphetamine is a powerful lab-made stimulant, and the National Institute on Drug Abuse (NIDA) rates its addiction potential as high. Most methamphetamine used in the United States is made illegally. It is sold as a powder or as crystals, often called crystal meth or ice.
Methamphetamine use frequently meets the threshold for a disorder. NIDA reports that nearly two out of three people aged 26 and older who used methamphetamine in the past year met criteria for a substance use disorder.
5 of the 11 DSM-5-TR criteria that describe how the disorder shows up in daily life:
- Using more methamphetamine, or for longer, than intended
- Wanting to cut down and not managing to
- Strong cravings for the drug
- Missing duties at work, school or home because of use
- Continuing to use despite physical or mental health problems from it
3 severity levels clinicians assign, based on how many criteria a person meets:
- Mild: 2 or 3 criteria
- Moderate: 4 or 5 criteria
- Severe: 6 or more criteria, the level people usually mean when they say addiction
The criteria describe behavior and its consequences, not a person's character. Tolerance and withdrawal also count toward the total of 11.
Methamphetamine also exists as a prescription medicine in a narrow role. The FDA has approved methamphetamine for attention deficit hyperactivity disorder (ADHD) and for short-term treatment of obesity. That ADHD approval raises a common question about how meth compares with Adderall.
The harm from illicit methamphetamine starts with how methamphetamine acts in the brain and body.
What does meth do to the brain and body?
Methamphetamine pushes large amounts of dopamine, the brain's reward chemical, out of nerve cells and blocks its return. That surge produces a rush of energy and pleasure, and repeated use strains the heart, teeth, sleep, memory and mood.
The 2024 clinical guideline from the American Society of Addiction Medicine (ASAM) and the American Academy of Addiction Psychiatry (AAAP) explains the difference from cocaine. Cocaine only blocks dopamine from being recycled. Methamphetamine both releases more dopamine and blocks its recycling, producing much higher levels.
Methamphetamine also stays in the body far longer. The same guideline puts the half-life of methamphetamine at 10 to 12 hours, against about 1 hour for cocaine. Half-life is the time the body takes to clear half of a dose. The 10 to 12 hour half-life is one factor in how long meth stays in your system.
The high itself fades faster than the drug. NIDA explains that the euphoria wears off quickly and leads to a crash, so some people take methamphetamine again and again in a binge to hold the high. Binge use of this kind raises the risk of developing methamphetamine use disorder.
6 immediate health risks NIDA lists for methamphetamine use:
- Paranoia and anxiety
- A rapid or irregular heartbeat
- Raised blood pressure
- Stroke
- Kidney damage
- Nonfatal overdose, which NIDA notes is also called overamping, and fatal overdose
6 long-term health problems NIDA lists for long-term methamphetamine use:
- Insomnia, confusion, anxiety and mood problems
- Psychosis, including hallucinations and fixed false beliefs
- Slower reaction times and trouble with verbal learning, found in some studies
- Stroke and heart failure
- Infections such as HIV, hepatitis and heart-valve infection through shared needles
- Tooth decay and tooth loss, often called meth mouth
Brain scans explain part of that damage. Studies summarized by Volkow and colleagues found fewer dopamine transporters, the proteins that recycle dopamine, in people who use methamphetamine, alongside slower movement and weaker memory. NIDA classes methamphetamine as a synthetic stimulant, one drug within the wider class of stimulants.
Overdose and hidden opioids
NIDA warns that opioids such as fentanyl are sometimes added to illicit methamphetamine as a hidden ingredient. NIDA advises giving an opioid overdose reversal medication such as naloxone (Narcan) to anyone whose breathing has slowed or stopped. Call 911 as well.
These effects surface in daily life as signs that family members and friends often notice before the person using does.
What are the signs of meth use?
The signs of meth use include staying awake far longer than usual, fast talking, high energy and confidence, eating little, and anxiety or paranoia, followed by a crash of heavy sleep and irritability. Over months, poor sleep, memory problems and tooth decay appear.
5 physical signs during or soon after meth use:
- Staying awake far longer than usual during a binge
- Eating very little because appetite drops
- A burst of physical energy and wakefulness
- A racing or pounding heartbeat
- Tooth decay and dental problems with longer use
5 behavioral signs linked to methamphetamine use:
- Talking fast and far more than usual
- Unusual confidence, alertness and drive
- Anxiety, suspicion or fear that others are watching or plotting
- Using again and again in a binge, then crashing
- Dropping work, family duties or hobbies to use or recover
The crash has its own timeline. The ASAM and AAAP guideline notes that many people spend 12 to 24 hours sleepy and irritable after stopping, as the brain's chemical messengers run low and lost sleep catches up.
Agitation is a sign of its own, because the ASAM and AAAP guideline lists agitation among the danger signs clinicians check in stimulant intoxication. Meth-related agitation is the state behind the street term tweaking.
No single sign proves methamphetamine use, and a doctor or addiction clinician can assess the full picture. The crash that follows use is also the first stage of methamphetamine withdrawal.
What are meth withdrawal symptoms?
Meth withdrawal symptoms are depression, anxiety, irritability, aches, sleep problems, strong cravings and trouble concentrating. NIDA reports that these symptoms peak 2 to 3 days after the last use and may last for a week.
7 withdrawal symptoms NIDA lists for methamphetamine:
- Depression, meaning low mood that can become severe
- Anxiety
- Irritability
- Pain and physical discomfort
- Sleep problems
- Cravings for the drug
- Trouble concentrating
Withdrawal does not require a diagnosis to happen. NIDA notes that a person who has used methamphetamine repeatedly may quickly experience withdrawal symptoms after stopping, even without stimulant use disorder.
Low mood in meth withdrawal can turn severe. The ASAM and AAAP guideline warns that suicidal thinking may rise as intoxication wears off and during acute withdrawal.
Suicide risk during withdrawal
If someone talks about suicide or self-harm, call or text 988, or call 911.
Researchers rate these symptoms with a questionnaire. Srisurapanont and colleagues built the Amphetamine Withdrawal Questionnaire (AWQ) in 1999 to measure amphetamine withdrawal.
3 symptom factors the AWQ measures:
- AWQ hyperarousal, meaning feeling on edge
- AWQ reversed vegetative signs, meaning changes in sleep and appetite
- AWQ anxiety
The 2024 ASAM and AAAP guideline adds a caution about such tools. The guideline committee judged the Stimulant Selective Severity Assessment and similar scales to be research measures rather than proven clinical tools. A clinician's history and physical examination therefore remain the main basis for assessing withdrawal.
Each of these symptoms runs on its own clock, and craving runs longest.
How long does meth withdrawal last?
Acute meth withdrawal usually lasts about a week, with symptoms peaking 2 to 3 days after the last use. Craving lasts longer: in a 2010 inpatient study, craving did not ease until the second week and continued at a lower level through week 5.
The course runs in 3 overlapping phases.
| Phase | Timing | What happens |
|---|---|---|
| Crash | First 12 to 24 hours | Heavy sleepiness and irritability as lost sleep catches up |
| Acute withdrawal | Peaks at 2 to 3 days, may last a week | Depression, anxiety, irritability, aches, sleep problems, craving, poor focus |
| Post-acute phase | Weeks to several months | Craving, low mood, anxiety, insomnia and at times paranoia |
Zorick and colleagues followed 56 adults with methamphetamine dependence on an inpatient research ward for up to 5 weeks. Depressive and psychotic symptoms largely faded within the first week. Craving did not drop meaningfully until the second week, then continued at a lower level to the fifth.
The weeks after acute withdrawal still carry real symptoms. The ASAM and AAAP guideline states that post-acute symptoms, including depression, anxiety, insomnia and paranoia, can last for weeks to months. NIDA likewise reports that low mood, anxiety and cravings can continue for several months.
That long tail matters because Zorick and colleagues identify withdrawal symptoms as a risk factor for return to use. Psychosis follows a shorter course than craving, and meth psychosis carries its own emergency signs.
What is meth psychosis and when is it an emergency?
Meth psychosis is a break from reality caused by methamphetamine, with hallucinations, meaning seeing or hearing things that are not there, and delusions, meaning firmly held false beliefs. Violence, threats of harm or agitation that cannot be calmed make it an emergency: call 911.
When to call 911
Call 911 or go to the nearest emergency room if a person using meth is violent, is threatening to harm themselves or others, or cannot be calmed. Also call for chest pain, a very high body temperature, severe confusion or a seizure. For thoughts of suicide, call or text 988.
Psychosis is common with methamphetamine. Glasner-Edwards and Mooney reviewed the research in 2014 and reported estimates of up to about 40% of people who use methamphetamine experiencing psychotic symptoms. Acute symptoms can include agitation, violence and delusions.
Acute meth psychosis can need a hospital-level setting. Glasner-Edwards and Mooney note that it may require management in an inpatient psychiatric unit or another crisis setting. Treatment there can include antipsychotic medication or benzodiazepines, and symptoms may resolve without medication once methamphetamine use stops for a period. New Frontier Recovery Center does not provide emergency psychiatric care or standalone mental health treatment.
Clinicians rely on calm talk. The ASAM and AAAP guideline recommends verbal and nonverbal de-escalation for people who are agitated or psychotic, and a low-stimulation environment. At home, while waiting for help, a quiet room and calm, simple speech follow the same principle.
How long does meth psychosis last?
Meth psychosis usually fades within about a week of stopping methamphetamine. In a subset of people it returns or persists, and NIDA reports that heavy drinking and stress raise the odds of psychotic symptoms coming back.
The inpatient study by Zorick and colleagues found psychotic symptoms largely resolved within the first week of abstinence. Glasner-Edwards and Mooney conclude that preventing a return to methamphetamine use is the most direct way to prevent psychosis from recurring.
How is meth psychosis different from schizophrenia?
Meth psychosis is tied in time to methamphetamine use and usually clears with abstinence, while schizophrenia is a primary psychotic disorder. Psychosis that recurs and persists after meth use can be difficult to distinguish from schizophrenia.
4 sources of evidence Glasner-Edwards and Mooney describe for telling the two apart:
- The timing of symptoms relative to methamphetamine use
- Structured psychiatric assessment interviews
- Urine drug tests showing recent use
- Information from family members or others close to the person
Psychosis and severe low mood are the main dangers in stopping methamphetamine, which is why the question of medical detox needs a clear answer.
Does meth withdrawal need medical detox?
Meth withdrawal is usually managed with supportive care rather than a medication protocol. The 2024 ASAM and AAAP guideline focuses withdrawal care on easing symptoms, lowering risks and keeping the setting calm, while clinicians watch for complications and suicide risk.
Common misconception
Anyone coming off meth needs a medical detox unit to get through withdrawal safely.
What the evidence shows. The ASAM and AAAP guideline sets the standard of care for stimulant withdrawal as easing presenting symptoms and minimizing risk in a calming environment. The guideline found that the medications studied for withdrawal itself were tested mostly in small, low-quality studies (ASAM/AAAP Clinical Practice Guideline on the Management of Stimulant Use Disorder, 2024).
The guideline ties its list of life-threatening physical complications to acute stimulant intoxication, and it directs that they be treated immediately in an appropriate level of care.
4 life-threatening complications of stimulant intoxication the guideline names:
- Heart attack and other acute heart problems
- Dangerously high blood pressure
- Overheating of the body
- A buildup of acid in the blood
Clinicians therefore decide the setting person by person. The guideline tells them to check first for acute complications of intoxication or withdrawal that call for a higher level of care. That check covers a fast heart rate, high blood pressure, overheating and agitation.
Other substances change the picture. A person who also uses alcohol, opioids or sedatives needs an assessment of those withdrawal risks as well.
Physical stabilization is quick compared with the changes in the brain that unfold over the following year.
Why does psychological recovery take longer than physical stabilization?
Psychological recovery takes longer because methamphetamine changes the brain's dopamine system, and those changes reverse slowly. Brain scans show dopamine transporters recovering measurably by 12 to 17 months without meth, with memory and thinking lagging behind even then.
Volkow and colleagues scanned 5 people who had used methamphetamine, first within 6 months of stopping and again at 12 to 17 months. Dopamine transporters rose 19% in the caudate and 16% in the putamen, two parts of the striatum, a deep brain region involved in reward and movement.
Thinking did not keep pace with the scans. Performance on neuropsychological tests, which measure memory and mental speed, did not improve to the same extent. The authors concluded that the rise in dopamine transporters was not enough for complete recovery of function.
The study was small, and the authors framed the finding with care. Volkow and colleagues wrote that protracted abstinence may reverse some methamphetamine-induced changes in dopamine nerve endings, which offers a hopeful but slow timeline.
That gap shapes early recovery. A person can feel physically steady within about a week while craving, low mood and poor concentration continue for weeks or months. Recovery from methamphetamine use disorder therefore needs a plan measured in months, not days.
That months-long timeline is what treatment for methamphetamine use disorder is built around.
How is methamphetamine use disorder treated?
Methamphetamine use disorder is treated with behavioral therapy, led by contingency management, because no medication has FDA approval for it. Cognitive behavioral therapy, group support and motivational interviewing add to that core, and some medications are used off-label.
Contingency management gives small, real rewards, such as prizes, vouchers or gift cards, for staying off methamphetamine and for staying in treatment. NIDA calls it the best-studied behavioral treatment for methamphetamine use disorder. The 2024 ASAM and AAAP guideline names it the current standard of care.
Access lags behind the evidence. The same guideline reports that fewer than 10% of addiction treatment programs use contingency management. The guideline names regulatory obstacles, cost, stakeholder buy-in and program resources as the barriers.
3 other evidence-based behavioral approaches NIDA names:
- Cognitive behavioral therapy, which helps a person spot and handle the thoughts and situations that lead to use
- Group support, which builds accountability and connection with peers
- Motivational interviewing, a conversation style that strengthens a person's own reasons to change
Medication research is active, and two options carry evidence. In the ADAPT-2 trial, Trivedi and colleagues enrolled 403 adults and compared injectable extended-release naltrexone plus bupropion with placebo. Across 12 weeks, 13.6% responded on the combination against 2.5% on placebo.
The ADAPT-2 authors called that response low but higher than placebo. The ASAM and AAAP guideline lets clinicians consider the combination off-label, at moderate certainty. The guideline rates mirtazapine, an antidepressant, as a low-certainty off-label option.
Methamphetamine weighs heavily on Montana. Montana DPHHS reports that methamphetamine was identified in 48% of the state's drug overdose deaths in 2023, 89 of 185. Hospitals charged $53.5 million that year to treat nearly 3,800 patients for meth overdose and other stimulant-related disorders.
Use is also higher than the national rate. Montana DPHHS reports that 1.7% of Montanans aged 12 and older used methamphetamine in the past year, against 1.0% nationally. Meth is one part of Montana's wider addiction statistics.
Recovery from methamphetamine use disorder is measured in months, and a residential setting places those early months in a structured environment.
New Frontier Recovery Center in Huntley, Montana provides residential treatment at ASAM Level 3.5 for adults with methamphetamine use disorder. New Frontier Recovery Center also provides medically supervised detox at ASAM Level 3.7 for adults with substance use disorders.
About this page
New Frontier Recovery Center publishes this material for general education. It does not replace assessment by a licensed clinician.
Frequently asked questions
What is used to treat meth addiction?
What is a common withdrawal symptom of stimulants?
Can you overdose on meth?
Is meth an opioid?
Is meth a stimulant?
What are the symptoms of meth psychosis?
Sources
- National Institute on Drug Abuse (2024). Methamphetamine, research topic page, National Institutes of Health. Effects, signs, withdrawal symptoms and timing, psychosis, DSM criteria, the absence of an FDA-approved medication, and contingency management.
- ASAM/AAAP Clinical Guideline Committee (2024). The ASAM/AAAP Clinical Practice Guideline on the Management of Stimulant Use Disorder, Journal of Addiction Medicine, 18(1S Suppl 1), 1-56. Contingency management as the standard of care, withdrawal and intoxication management, suicidality, half-life, and off-label medication recommendations.
- Zorick, T. et al. (2010). Withdrawal symptoms in abstinent methamphetamine-dependent subjects, Addiction, 105(10), 1809-1818. The course of mood, psychotic symptoms and craving over 5 weeks of abstinence.
- Srisurapanont, M., Jarusuraisin, N. and Jittiwutikan, J. (1999). Amphetamine withdrawal: I. Reliability, validity and factor structure of a measure, Australian and New Zealand Journal of Psychiatry, 33(1), 89-93. The Amphetamine Withdrawal Questionnaire and its three factors.
- Glasner-Edwards, S. and Mooney, L. J. (2014). Methamphetamine psychosis: epidemiology and management, CNS Drugs, 28(12), 1115-1126. Psychosis prevalence, acute management setting, recurrence and differential diagnosis.
- Trivedi, M. H. et al. (2021). Bupropion and Naltrexone in Methamphetamine Use Disorder, New England Journal of Medicine, 384(2), 140-153. The ADAPT-2 trial.
- Volkow, N. D. et al. (2001). Loss of dopamine transporters in methamphetamine abusers recovers with protracted abstinence, Journal of Neuroscience, 21(23), 9414-9418. Dopamine transporter recovery at 12 to 17 months and lagging cognitive recovery.
- Montana Department of Public Health and Human Services (2024). Methamphetamine Use in Montana, fact sheet. Methamphetamine share of 2023 Montana overdose deaths, hospital charges and past-year use.