Question

which drug produces a dissociative state and can cause amnesia and profound loss of pain?
ketamine
cocaine
lsd
ecstasy

Explanation:

Ketamine is a dissociative anesthetic. It can cause a dissociative state, amnesia, and profound loss of pain. Cocaine is a stimulant. LSD is a hallucinogen. Ecstasy (MDMA) has stimulant and hallucinogenic properties.

Answer:

ketamine