Stopping or substantially reducing repeated nonmedical amphetamine use can be followed by exhaustion, changes in sleep and appetite, low mood and strong urges to use again. These symptoms vary between people. Severe depression, suicidal thoughts, psychosis or significant physical symptoms require prompt assessment.
This guide focuses on withdrawal after nonmedical use of products such as “Speed” and related amphetamine-type stimulants, including methamphetamine. The actual substance in an illicit product may be uncertain. Cocaine is another stimulant, but it is not an amphetamine. Stopping a prescribed ADHD medicine requires a separate discussion with the prescriber.
Amphetamine use, dependence and withdrawal
Amphetamines stimulate the central nervous system and affect signaling involving dopamine and noradrenaline. They can increase wakefulness and drive, and nonmedical or high exposure may produce euphoria. Repeated use can reinforce further use, but no fixed number of days makes addiction inevitable.
A stimulant-use disorder is assessed through impaired control, craving, continued use despite harm and effects on daily functioning. Tolerance, physical adaptation and withdrawal symptoms are related concepts, but none on its own automatically proves addiction. Risk depends on the substance, pattern of use, other substances and individual health.
Withdrawal is not explained by a simple fall in one hormone or by the medicine’s half-life alone. Changes in sleep, mood and motivation may follow a different course from drug elimination. Assessment should also consider remaining intoxication, sleep deprivation, coexisting illness and withdrawal from other substances.
Possible withdrawal symptoms
Symptoms may appear after a marked reduction in prolonged or high-intensity use. A person may experience some of the following, without having every symptom or following a predictable schedule.
Physical and sleep-related changes
- Marked fatigue, low energy and reduced drive.
- Increased sleep initially, insomnia or an irregular sleep pattern.
- Increased appetite.
- General aches, headache or physical discomfort.
- Slower thinking or activity, or restlessness and agitation.
Nausea, tremor, muscle symptoms or other physical complaints may have several causes and deserve assessment when significant or persistent. New speech difficulty, weakness on one side, severe coordination problems, a seizure or a sudden severe headache are emergency signs, not symptoms to wait out as ordinary withdrawal.
Mood, thoughts and behavior
- Depressed or dysphoric mood and difficulty experiencing pleasure.
- Anxiety, irritability or restlessness.
- Strong cravings and difficulty concentrating.
- Vivid or disturbing dreams.
- Paranoia, hallucinations or other symptoms requiring professional evaluation.
Depression can be severe, and suicide risk can increase as intoxication wears off and withdrawal begins. Persistent psychosis, rapidly worsening confusion or inability to remain safe requires urgent care. Do not assume that every mental-health symptom is caused only by withdrawal or will disappear without assessment.
How long does amphetamine withdrawal last?
There is no universal duration or deadline for recovery. Some acute symptoms change over days, while sleep problems, mood changes, reduced energy or craving can persist for weeks or longer in some people. Improvement in one area does not show that every risk has resolved.
- The actual stimulant, amount, frequency, route and duration of use.
- Recent repeated dosing, prolonged wakefulness and time since last use.
- Alcohol, sedatives or other substances taken alongside the stimulant.
- Physical and mental health, previous withdrawal and current medicines.
- The living environment and available support.
A half-life or a negative screening test cannot predict the duration of withdrawal or establish fitness to drive. Do not drive or operate machinery when intoxicated, exhausted, confused or otherwise impaired. Worsening symptoms should be assessed regardless of how long it has been since the last use.
Changes during recovery
Early exhaustion and mood changes
When stimulant effects wear off, a person may feel very tired, sleep more, feel low or become anxious and unsettled. The onset and severity depend on the pattern of use. A “crash” is a useful description for some experiences, not a fixed stage that every person must pass through.
Ongoing sleep, mood and concentration problems
Sleep and mood can fluctuate, and cravings or concentration difficulties may outlast the first physical changes. Terms such as “post-acute withdrawal” describe some persistent experiences but do not establish a single syndrome beginning on a fixed day. Continuing symptoms need individual assessment.
Persistent depression, anxiety, insomnia, loss of pleasure or paranoia may require treatment. Clinicians should consider independent mental-health conditions, continuing substance exposure and other medical causes rather than attributing everything to withdrawal. There is no day when everyone must be symptom-free.
When is withdrawal dangerous?
A severe mental-health crisis can be a major risk. Physical emergencies may reflect stimulant toxicity or another illness, and withdrawal from alcohol or benzodiazepines can introduce additional hazards. Seek emergency assistance for the following:
- Suicidal thoughts with immediate risk, self-harm or inability to stay safe.
- Severe agitation, psychosis or rapidly worsening confusion.
- Chest pain, collapse, severe palpitations or breathing difficulty.
- Seizures, sudden severe headache or new neurological symptoms.
- Severe illness, dehydration or complications involving several substances.
If there is immediate danger, contact local emergency services. Stay with a person at risk when safe and help them obtain professional care. Do not attempt to manage a crisis using alcohol, someone else’s medication or an unknown “detox” product.
Returning to use does not make the situation safe. An uncertain product, changed tolerance, sleep loss and combinations with other substances can increase risk. A return to use should prompt support and reassessment rather than blame.
Professional assessment and a withdrawal plan
A clinician or addiction service can assess the substances used, last use, sleep, nutrition, mental health, medicines and previous withdrawal. The plan should identify available support, who to contact if symptoms worsen and how safety will be monitored. Be honest about alcohol, sedatives and other drugs so that additional withdrawal risks are considered.
Many people can receive outpatient support. Hospital or urgent psychiatric care may be needed for suicidal risk, persistent psychosis, severe agitation, significant physical instability or complex withdrawal involving several substances. Residential support may be useful when the living environment is unsafe or practical support is limited; it is not a universal requirement.
Stopping versus tapering
Do not create a home taper using illicit amphetamines or assume that continuing an unknown product is a safer withdrawal strategy. A professional assessment should guide safe cessation and symptom management. For prescribed stimulants, the prescriber decides whether and how a dose change is appropriate; do not alter the prescription independently.
For prescribed ADHD medicines, see Prescription Stimulant Withdrawal: Symptoms, Assessment and Recovery Support. Return of an underlying condition and withdrawal symptoms may need different management.
Treatment and ongoing support
Psychological and behavioral approaches
For stimulant-use disorders, contingency management has the strongest evidence and uses incentives linked to agreed treatment goals. It can be combined with cognitive behavioral therapy and other approaches. Treatment can help with craving, triggers, stress, communication and plans for maintaining change.
Individual therapy, groups and family support
Individual therapy can address the person’s needs and coexisting conditions. Professionally led groups or peer support can provide connection and practical encouragement. Family support can help when it respects the person’s preferences and safety. Treatment should not assume that every addiction has one hidden emotional cause.
Medicines and symptom management
There is no single medicine or fixed regimen that reliably ends every person’s stimulant withdrawal. A clinician may treat particular symptoms or independent conditions after considering risks, benefits, interactions and other substances. Treatment of a stimulant-use disorder is also distinct from short-term withdrawal management.
Antidepressants may be appropriate for persistent or independent depression, but do not replace urgent suicide-risk assessment or work immediately for everyone. Severe psychosis or agitation may need supervised treatment. Do not self-medicate with benzodiazepines or other sedatives: they can introduce dependence and overdose risks.
Sleep problems should be assessed individually. A calming environment and regular sleep routines can help; adding a sleeping medicine is not automatically necessary. Significant medical or psychiatric symptoms need suitable treatment rather than only sleep advice.
Nutrition, activity and well-being
Regular meals, appropriate hydration, rest and supportive relationships can assist recovery. Relaxation techniques, meaningful activities and gentle exercise may help when medically appropriate. They do not replace care for severe depression, psychosis, dehydration or cardiovascular symptoms. Chest pain or acute illness requires assessment before exertion.
Persistent symptoms and preventing a return to harmful use
Follow-up can reassess sleep, mood, concentration and craving as the situation changes. Continuing problems may reflect withdrawal, another condition or several factors together. A plan should be adapted rather than declaring symptoms “normal” solely because they occur after stopping.
Identify likely triggers, supportive contacts and what to do after a lapse. A return to use does not erase progress, but an uncertain product or substance combination can still cause serious intoxication. Seek help early and urgently for severe symptoms. Recovery can take time, and no program guarantees a particular outcome.
