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Type Psychoactive
Legal Status Class A
Methamphetamineis a stimulant drug that is chemically similar to amphetamine. Methamphetamine increases the amount of the neurotransmitter dopamine, leading to high levels of that chemical in the brain.
Short Term Effects
Methamphetamine may cause euphoria, increase alertness, intensify emotions and boost self-esteem. In addition tremor, sweating, dilated pupils, agitation, confusion, headache, anxiety, vomiting, abdominal pain, seizures, hallucinations or delusions. Chest pain, palpitations, dyspnoea, systemic hypotension or hypertension may occur. Narrow-complex tachycardias are common; ventricular tachycardia or ventricular fibrillation may occur. Hyperpyrexia may be severe. Metabolic acidosis may also occur.
Death Data
There have been deaths reported following methamphetamine ingestion as low as 1.5 mg/kg (140 mg) (Zalis and Parmley 1963).