Neurotransmitters & Drugs Affecting Them

Question 1

How does dopamine relate to schizophrenia?

Answer 1

Excess DA linked to positive symptoms (hallucinations, delusions).

Question 2

What drug treats schizophrenia & how?

Answer 2

Chlorpromazine (a dopamine antagonist) blocks D2 receptors.

Question 3

What drugs increase dopamine and may cause psychosis?

Answer 3

Cocaine & amphetamines.