Brief Description: One of the strongest mood-changing drugs. It is sold as tablets, capsules, liquid, or on absorbent paper.

Street Names: Acid, blotter, and many others.

Effects: Unpredictable psychological effects. With large enough doses, users experience delusions and visual hallucinations. Physical effects include increased body temperature, heart rate, and blood pressure; sleeplessness; and loss of appetite.

Statistics and Trends: 11.4% of Canadians report having used hallucinogens.