* * *sul·fa·thi·a·zole or chiefly Brit sul·pha·thi·a·zole .səl-fə-'thī-ə-.zōl n a sulfa drug C9H9N3O2S2 derived from thiazole and sulfanilamide that is seldom prescribed because of its toxicity but was formerly used esp. in the treatment of pneumococcus and staphylococcus infections
* * *sul·fa·thi·a·zole (sul″fə-thiґə-zōl) [USP] a sulfonamide antibacterial used topically in combination with sulfacetamide and sulfabenzamide (as triple sulfa) in the treatment of bacterial vaginosis.
Medical dictionary. 2011.