Sulfadimidine or sulfamethazine is a sulfonamide antibacterial.
There are non-standardizeda abbreviations for it as "sulfadimidine" (abbreviated SDI[1][2] and more commonly but less reliablyb SDD[3][4]) and as "sulfamethazine" (abbreviated SMT[5][6] and more commonly but less reliablyc SMZ[7][8]). Other names include sulfadimerazine, sulfadimezine, and sulphadimethylpyrimidine.[citation needed]
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