What type of substance is bacitracin classified as?

Bacitracin is classified as an antibiotic, which is a type of medication used specifically to treat bacterial infections. Antibiotics work by targeting the mechanisms essential for bacterial growth and reproduction, thereby helping to eliminate the infection. Bacitracin is particularly effective against gram-positive bacteria and is often used topically or in certain formulations to treat skin infections or conditions like impetigo.

The other classifications listed do not accurately describe bacitracin's function. Analgesics are pain relievers, antiseptics are used to clean wounds and prevent infection by killing or inhibiting the growth of pathogens on living tissues, and antifungals are used to treat fungal infections. Each of these classifications addresses different types of pathogens or medical needs, which distinguishes them from antibiotics like bacitracin.