The dosages observed are normally 100 mg every 4-5 days. Drostanolone is not hepatoxic so liver damage is quite unlikely. High blood pressure and gynecomastia are not a problem since neither water nor salt retention occurs and the estrogen level remains low. The main problem are acne and a possible accelerated hair loss since dihydrotestosterone is highly affinitive to the skin's androgen receptors, in particular, to those on the scalp. Since Mastabol. in most cases, is not administered in excessively high dosages and the intake, at the same time, is limited to a few weeks, the compatibility for the athlete is usually very good.