What group of drugs do tranquilizers and barbiturates belong to?
Collectively, they're Sedatives. However, there's some categorization within the sedative category: Barbiturates, Minor Tranquilizers, and Major Tranquilizers.Barbiturates (examples)amobarbital (Amytal)pentobarbital (Nembutal)secobarbital (Seconal)Phenobarbitol (Luminal)Tranquilizers (examples)Minor Tranquilizers: Benzodiazepines (Xanax, Valium, Klonopin, etc)Major Tranquilizers (usually refers to antipsychotics): Haloperidol (amongst others)