Additional information Active substance Fluoxymesterone Formula C20H29FO3 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 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 Blood pressure Can cause hypertension Also known as Fluoxymesterone Lab Test Liver function tests Hepatotoxicity High Water Retention No Use in sports Used by athletes in sports requiring strength and where weight categories are involved Manufacturer Euro-Pharmacies Packing 100 Tabs – 10mg/Tab