Sulfanilamide
From SNPedia
Sulfanilamide (also spelled sulphanilamide) is a sulfonamide antibacterial. Modern antibiotics have supplanted sulfanilamide; however, sulfanilamide remains in use for treatment of vaginal yeast infections.Wikipedia
[[G6PD]-deficient individuals should use caution when using sulfanilamide due to the risk of hemolysis. According to the FDA, this type of reaction is frequently dose-related.