Which drug class is used to treat a psychiatric condition characterized by delusions or hallucinations?

Which drug class is used to treat a psychiatric condition characterized by delusions or hallucinations?

• A. Anti-impotence
• B. Anti-infective
• C. Antipsychotic
• D. Antiretroviral

Answer: (C)

Treating psychosis relies on drugs that block dopamine signaling in brain circuits that drive delusions and hallucinations. Antipsychotics do this by antagonizing dopamine D2 receptors, especially in the mesolimbic pathway, which helps reduce the positive symptoms of psychosis such as fixed false beliefs and hallucinatory experiences. Typical antipsychotics mainly dampen dopamine activity and can cause movement-related side effects, while atypical antipsychotics affect multiple targets and often have a different side-effect profile, sometimes with metabolic considerations. Other drug classes listed target entirely different conditions: anti-impotence drugs treat erectile dysfunction, anti-infectives target infections, and antiretrovirals treat HIV.

Treating psychosis relies on drugs that block dopamine signaling in brain circuits that drive delusions and hallucinations. Antipsychotics do this by antagonizing dopamine D2 receptors, especially in the mesolimbic pathway, which helps reduce the positive symptoms of psychosis such as fixed false beliefs and hallucinatory experiences. Typical antipsychotics mainly dampen dopamine activity and can cause movement-related side effects, while atypical antipsychotics affect multiple targets and often have a different side-effect profile, sometimes with metabolic considerations. Other drug classes listed target entirely different conditions: anti-impotence drugs treat erectile dysfunction, anti-infectives target infections, and antiretrovirals treat HIV.