treatment of fresh human serum with indomethacin ( idm ) , sulindac ( su ) , phenylbutazone ( ph ) and oxyphenbutazone ( oph ) inhibited both the classical and alternative complement ( c ) pathway activities in a dose-dependent fashion with a 50 % inhibition dose of 4.65 , 1.0 , 1.65 and 1.3 mg/ml respectively .
C0031463
phenylbutazone
C0030078
oxyphenbutazone