1) Lsds 1) Mind benders 2) Trip requirements 
Drugs capable of inducing illusions, hallucinations, delusions, paranoid ideations, and other alterations of mood and thinking. Despite the name, the feature that distinguishes these agents from other classes of drugs is their capacity to induce states of altered perception, thought, and feeling that are not experienced otherwise. ... (12 Dec 1998)...
Drugs that stimulate the nervous system and produce varied changes in perception and mood.
Drugs that induce hallucinations.
Drugs that cause sensory and perceptual distortions.