25C-NBOMe‎
Alcohol
Amphetamines
Bath salts
Cocaine
Ecstasy
Gamma hydroxybutyrate (GHB)
Heroin
Inhalant<unk> 
Hydrocarbon toxicity
Difluoroethane (electronics duster)
Marijuana
Phencyclidine (PCP)
Psilocybin ("magic mushrooms")
Synthetic cannabinoids
Chloral hydrate
Body packing
Hydrocarbon toxicity
Difluoroethane (electronics duster)
Drugs of abuse
Caustic cocktail
Trauma 
Hazmat exposure
Diabetes medications
Electrical injuries
Inhalant abuse
Hymenoptera stings