First generation antihistamines include brompheniramine, diphenhydramine, carbinoxamine, chlorpheniramine, and clemastine.
These antihistamines all have anticholinergic properties, making sedation one of the major side effects.
The class of sedative drugs includes sleep aids like Lunesta, Ambien and Sonata and barbiturates like Seconal and Amytal.
They all cause drowsiness and sleepiness and are used to reduce anxiety.
Narconon drug and alcohol rehabilitation facilities located all around the world offer a drugless recovery from this type of addiction.