Intoxication; apathy, lethargy, listlessness, impaired judgment, psychomotor retardation or agitation, constricted pupils, drowsiness, slurred speech, and impaired attention and memory
Overdose: coma, respiratory depression, pupil constriction, unconsciousness, death
Naloxone as treatment for overdose
High, euphoric feeling. Hyperactivity, hypervigilance, talkative, anxiety, grandiosity, hallucinations, repetitive behavior, anger, fighting, impaired judgment. Tachycardia. elevated bp, dilated pupils, perspiration, chills, nausea, chest pain, confusion, dysrhythmias, seizures, coma, death is rare.