Acid

Acid is a kind of drug able to be dealed in Grand Theft Auto: Chinatown Wars.

It is based off of the real life drug, LSD.

Dealing
The acid is one of the two available "hallucinogens" as referred to in-game.

It can be bought in large quantities and good prices to the Irish American Killers and sold at high prices to the Midtown Gangsters.