Sulfadoxine is an antimicrobial agent primarily used in combination with pyrimethamine to treat or prevent malaria. It is commonly found in the combination drug called sulfadoxine-pyrimethamine (SP). Sulfadoxine is a long-acting sulfonamide, which works by inhibiting the synthesis of dihydropteroate, an essential component in folate production for the malaria parasite. Without folate, the parasite cannot multiply and survive.
If you're referring to sulfadoxine powder for medicinal preparation, it's typically used in the formulation of oral medications. Sulfadoxine in its raw form should be handled by professionals, as precise dosages are necessary to prevent side effects like skin reactions, gastrointestinal issues, or even rare but serious conditions such as Stevens-Johnson syndrome.