Active Life: 5-7 days............. Drug Class: Selective Estrogen Receptor Modulator (Oral)............ Average Dose: Men 50-100 mg/day........... Acne: Yes......... Water Retention: No........ High Blood Pressure: Rare........ Liver Toxic: Low.......... Aromatization: None.......... Decrease HPTA function: No, used to restore it........ Strong gonadotropin stimulator/mild anti-estrogen........