Pharmacology General b35952ec All of the following are topically used sulphonamides except - A Sulphacetamide B Sulphadiazine C Silver sulphadiazine D Mafenide High-Yield Explanation Ans is 'b' i.e., Sulphadiazine Topical Sulfonamides - Sulfacetamide sodium, Mafenide, silver sulfadiazine.