Lysergic Acid Diethylamide: LSD. Mariana Abou-Rizk 2 nd period Ms. Bailey. Major Category. Hallucinogen a group of drugs that changes the way a person sees, hears, and feels things around him/her. History of LSD.
--A trip is a hallucination
--Some lead to overwhelming panic and anxiety; known as bad trips
--A trip can last twelve or more hours, depending on the drug
Physical signs of tripping: