Simple LSD ingestion can be safely discharged after a period of observation, once patient has returned to sober baseline and has a safe disposition plan (~4-6 hours)
Symptoms lasting longer than 8-12hrs can be managed in an observation unit or admitted
Further work-up and admission is indicated for persistent psychosis or altered mental status,
Further work-up and admission is indicated for persistent psychosis or altered mental status,
Lysergic acid diethylamide toxicity
Serotonin-Like Agents
Carbamate toxicity
Lysergic acid diethylamide 
Tianeptine toxicity
Psilocybin 
Phencyclidine toxicity
N,N-Dimethyltryptamine 