ADVERSE REACTIONS The following adverse reactions in the male have occurred with some androgens: Endocrine and urogenital: Gynecomastia and excessive frequency and duration of penile erections. Oligospermia may occur at high dosages. Skin and appendages: Hirsutism, male pattern of baldness, seborrhea, and acne. Cardiovascular disorders: myocardial infarction, stroke. Fluid and electrolyte disturbances: Retention of sodium, chloride, water, potassium, calcium, and inorganic phosphates. Gastrointestinal: Nausea, cholestatic jaundice, alterations in liver function tests, rarely hepatocellular neoplasms and peliosis hepatis (see WARNINGS). Hematologic: Suppression of clotting factors II, V, VII, and X, bleeding in patients on concomitant anticoagulant therapy, and polycythemia. Nervous system: Increased or decreased libido, headache, anxiety, depression, and generalized paresthesia. Allergic: Hypersensitivity, including skin manifestations and anaphylactoid reactions. Vascular disorders: Venous thromboembolism. Miscellaneous: Inflammation and pain at the site of intramuscular injection.