Effect of Steroids on Disposition of Oxyphenbutazone in Man.

Abstract
Summary The anabolic steroid methan-drostenolone causes an elevation in oxyphen-butazone plasma levels in man. The elevation is not due to a slowed rate of metabolism, but to an altered distribution between plasma and tissues. The glucocorticoids, prednisone and dexamethasone, do not influence the blood levels of oxyphenbutazone.