Additional information Active substance Fluoxymesterone Blood pressure Can cause hypertension Side effects Liver damage, aggression, acne, changes in blood lipids, masculinization (in females) Effects Increases strength, enhances muscle density, improves aggression Dosage (sports) 10-40 mg per day Dosage (medical) 5-20 mg per day Half-life Approximately 9.2 hours Main action Increase in lean muscle mass and strength Substance class Anabolic-androgenic steroid Formula C20H29FO3 Chemical name 9-fluoro-11,17-dihydroxy-17-methylandrosta-1,4-dien-3-one Storage conditions Store at room temperature away from moisture and heat Trade name Halotestin, Ultandren Also known as Fluoxymesterone Lab Test Liver function tests Aromatization No Hepatotoxicity Yes HBR Perhaps Water Retention No Acne Yes Dosage Men 10-40 mg/day Classification Anabolic steroid Active Half-Life 9 hours Raw Material Fluoxymesterone Use in sports Used by athletes in sports requiring strength and where weight categories are involved Manufacturer ALPHA PHARMA Packing 50 tabs (5 mg/tab)