Amphetamine or sympathomimetic intoxication Definition Amphetamine or sympathomimetic intoxication describes the state that occurs with the use of amphetamines or sympathomimetic drugs. Intoxication can easily lead to overdose with severe or deadly toxicity (poisonous effects). Symptoms include: high blood pressure, rapid heart rate (tachycardia), increased body temperature, agitation, stroke, seizures, irregular heart beats (cardiac arrhythmias) See also: amphetamines in the poison section. Alternative NamesSympathomimetic intoxication; Intoxication - amphetamines or sympathomimetics; Intoxication - uppers |