Allergy to class/drug
Hypersensitivity to salicylates
Hypersensitivity to sulfonamides
Porphyria
GI Obstruction, GU obstruction
Febrile viral infection (pts <20 yo)
Sulfasalazine
Mesalamine
Budesonide
Diclofenac
Sulfadiazine
Azathioprine
Prednisolone
Ibuprofen