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Stimulant

Methamphetamine

also: Crystal · Crystal Meth · Ice · Tina · Glass · Crank · Tweak · Shard

review pending

Content is undergoing medical and legal review. Changes possible.

Extremely potent synthetic stimulant. Much longer duration and higher addiction potential than amphetamine. Produces intense euphoria and energy followed by severe crash.

Onset

5 min

Peak

1 h

Duration

12 h

Half-life

12 h

Routes

nasal · smoked · oral · intravenous

Dosing

Common dose: 5 mg

Strong dose: 30 mg

Risks

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    Extremely high addiction potential consensus
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    Severe cardiovascular strain consensus
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    Psychosis (especially with sleep deprivation) consensus
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    Neurotoxicity consensus
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    Dental damage ('meth mouth') consensus
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    Severe comedown/crash consensus
  • ·
    Hyperthermia consensus

Safer Use

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    Avoid IV and smoked routes (highest addiction risk) consensus
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    Force yourself to eat and drink consensus
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    Set strict time limits consensus
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    Sleep is critical — do not binge consensus
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    Have someone check on you consensus
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    Start with the lowest possible dose consensus

Drug Checking

Street methamphetamine can contain adulterants. Test before use. **Note:** fentanyl adulteration of methamphetamine is documented for North America; for Europe it is not systematically established by current data. EUDA/EWS reports and Berlin drug-checking services publish any findings — the practice stays the same: test rather than assume. - drugsdata.org — Lab-tested results - fentanyl test strips (relevant mainly with a North-America link or unclear origin) - saferparty.ch — Swiss drug checking - drugchecking.berlin (vista, Schwulenberatung Berlin, Fixpunkt) — Berlin Senate model project