Succinylsulfathiazole (Succinylsulphathiazole) is a long-acting sulfonamide antibiotic with localized gut-specific antibacterial activity and is orally active. Succinylsulfathiazole inhibits bacterial folate synthesis, reduces coliform counts, suppresses intestinal bacterial growth and vitamin biosynthesis, and depletes gut folate-producing bacteria. Succinylsulfathiazole modulates hepatic mTOR signaling, diminishes cecal fermentation, decreases hepatic folate levels and total folate excretion, elevates nitrogen excretion and reduces the fermentability of certain dietary fibers. Succinylsulfathiazole induces folate deficiency and triggers biotin- and folate-related nutritional deficiency symptoms in rats and C57BL/6 mice[1][2][3].
