Which class of drugs does ketoconazole belong to?

Ketoconazole is classified as an antifungal agent. It is primarily used to treat various fungal infections by inhibiting the synthesis of ergosterol, a key component of fungal cell membranes, leading to increased membrane permeability and ultimately the death of the fungal cell. This mechanism makes it particularly effective against a range of fungal pathogens.

In contrast, the other classes of drugs listed do not pertain to ketoconazole's mechanism of action or therapeutic use. Antibacterial agents target bacteria, antiviral agents are used to treat virus infections, and analgesics are pain-relieving medications. Ketoconazole's role as an antifungal is crucial for managing infections caused by fungi, making the correct classification as an antifungal essential for understanding its uses in pharmacology.