磺胺二甲异恶唑 MSDSSulformethoxine
周效磺胺别名周效磺胺，磺胺多辛，磺胺邻二甲氧嘧啶。其是一种白色或类白色结晶粉末。其主要用于气管炎、肺炎、菌痢、尿路感染、皮肤软组织感染及预防风湿热等。
Sulfadoxine(Sulphadoxine) is an ultra-long-lasting sulfonamide. Sulfadoxine is often used in combination with pyrimethamine to treat or prevent malaria. Both drugs are antifolates; they inhibit the production of enzymes involved in the synthesis of folic acid within the parasites. Either drug by itself is only moderately effective in treating malaria, because the parasite Plasmodium falciparum may be able to use exogenous folic acid, i.e. folic acid which is present in the parasite's environment, while in combination, the two substances have a synergistic effect which outbalances that ability [1, 2].