sulfinpyrazon visse langtidsvirkende sulfonamider tetracykliner MAO- hæmmere quinoloner probenecid miconazol pentoxifyllin (høje parenterale doser) tritoqualin fluconazol
sulphinpyrazone, certain long acting sulphonamides, tetracyclines, MAO-inhibitors, quinolone antibiotics, probenecid, miconazol, pentoxifylline (high dose parenteral), tritoqualine, fluconazole.