Maintain airway and support ventilation, if needed
Naloxone 1-2mg IV for apnea, coma, or lethargy (may require repeat dosing)
Activated charcoal should be given promptly if available
No evidence for utility of physostigmine
Lomotil toxicity
Absinthe
Xylazine toxicity
Barbiturates
Mescaline toxicity
Benzodiazepines
Lysergic acid diethylamide toxicity
Flunitrazepam 