Clarigard 250 Banana Dry Syrup belongs to a group of medicine called macrolide antibiotics derived from Saccharopolyspora erythraea (originally called Streptomyces erythreus), used to treat a wide range of bacterial infections. A bacterial infection is a condition in which bacteria grow in the body and cause infection. It can target any body part and multiple very quickly. Antibiotics inhibit the growth of microorganisms and are given to treat bacterial infections.