Question

The first major antipsychotic drug to be introduced was _____; it was used to treat _____.

Answer 1

The first major antipsychotic drug to be introduced was lithium; it was used to treat bipolar disorder.
Bipolar disorder is a behavior disease, and since lithium was made to treat behavior diseases, then it is useful today.

Have a nice day! :)

Answer 2

The first major anti-psychotic drug to be introduced was clozapine. It was used to treat suicidal behaviors in people with schizophrenia or other mental breakdowns/ disorders.