Marijuana - also called weed, pot, reefer, grass, dope, ganja, mary jane and hash is the drug most often used in this country. It is a mix of dried, shredded flowers and leaves of the hemp plant. Most users roll loose marijuana into a cigarette. Hash users either smoke the drug in a pipe or mix it with tobacco and smoke it as a cigarette.

Amphetamines - are stimulants or "uppers" usually made synthetically in illegal labs. The effects include stimulation of the central nervous system, a sense of well-being and higher energy, a release of social inhibitions, and feelings of cleverness, competence and power. The term "amphetamine" refers to a large class of stimulants: amphetamines, dextroamphetamines, and methamphetamines.

Benzodiazepines - A class of drugs used as antianxiety tranquilizers. Some are used to treat muscle spasms, convulsions, and alcohol withdrawal syndrome. The most common side effects are drowsiness, confusion, and loss of coordination. Included in this class are chlordiazepoxide, diazepam, oxazepam, and chlorazepate dipotassium.