This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
All of the following are psychedelic drugs except? 
Select and explain. 
A. Lysergic acid diethylamide, B. Phencyclidine, C. Cocaine, D. Mescaline
C: Cocaine
Answer: C: Cocaine 
Explanation: Hallucinogens (Psychotomimetics, psychedelics, psychotogens) are drugs which alter mood, behaviour, thought and perception in a manner similar to that seen in psychosis. These are as: Lysergic acid diethylamide (LSD) Psilocybin Harmine Bufotenin Mescaline (Phenyl alkyl amines) Phencyclidine Lysergic acid amide