Diazepam belongs to which drug class?

Diazepam is classified as a benzodiazepine, which is a type of medication that acts primarily on the central nervous system. Benzodiazepines are commonly used for their sedative, anxiolytic, muscle relaxant, and anticonvulsant properties. They work by enhancing the effect of the neurotransmitter gamma-aminobutyric acid (GABA) at the GABA-A receptor in the brain, leading to increased relaxation and reduced anxiety.

In contrast, antidepressants are utilized primarily to treat mood disorders and often target different neurotransmitters such as serotonin or norepinephrine. Diuretics are medications designed to help the body remove excess fluids and sodium, typically used for conditions like hypertension or edema. Antipsychotics are prescribed for managing symptoms of psychosis, such as hallucinations and delusions, and they also act on various neurotransmitter systems in the brain.

Therefore, identifying diazepam as a benzodiazepine highlights its specific pharmacological role and therapeutic uses distinct from those of the other listed drug classes.