“…Toxic doses of methamphetamine are extensions of the effects of mild intoxication and may cause confusion, diaphoresis, palpitations, nausea, vomiting, hallucinations, convulsions, and coma. 10,17,19,20 Methamphetamine can be snorted, smoked, swallowed, and injected. After oral administration, the time to maximum plasma concentration (t max ) is two to three hours, although the drug's effects can be felt in as little as 20 minutes.…”