Onset of minor symptoms within 24h of abrupt cessation
Major, life-threatening symptoms occur ~2-8 days after stopping drug
Symptoms more severe with higher dose, longer duration of use, and use of short-acting<unk> s
Autonomic hyperactivity (e.g., diaphoresis, HR>100, hyperthermia)
Nausea/vomiting, abdominal cramping
Tremulousness, psychomotor agitation, muscle twitching
Anxiety, insomnia, irritability agitation
Psychosis (more common than in ETOH<unk> 
Seizure
Barbiturate withdrawal
Toxic alcohols
Caffeine withdrawal
Ethanol
Alcohol withdrawal
Ethylene glycol
Cocaine withdrawal
Methanol