Which class of drugs includes sulfonamide?

Sulfonamides are a class of antimicrobial agents that are specifically categorized as antibiotics. They work by inhibiting the bacterial synthesis of folic acid, which is essential for the production of nucleic acids and ultimately for bacterial growth and reproduction. This mechanism allows sulfonamides to effectively treat bacterial infections.

While antibiotics are used to combat a range of bacterial infections, other classes of drugs such as antidepressants, antipyretics, and analgesics serve entirely different purposes. Antidepressants are used to treat mood disorders, antipyretics are designed to reduce fever, and analgesics are aimed at alleviating pain. Each of these classes operates through distinct mechanisms and has different therapeutic roles, thus further clarifying that sulfonamides belong to the antibiotic class.