TESTOSTERONE CYPIONATE

Pharmacokinetics Testosterone esters are less polar than free testosterone. Testosterone esters in oil injected intramuscularly are absorbed slowly from the lipid phase; thus, testosterone cypionate can be given at intervals of two to four weeks. Testosterone in plasma is 98 percent bound to a specific testosterone-estradiol binding globulin, and about 2 percent is free. Generally, the amount of this sex-hormone binding globulin in the plasma will determine the distribution of testosterone betwe...

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. Gastrointe...

CONTRAINDICATIONS 1. Known hypersensitivity to the drug 2. Males with carcinoma of the breast 3. Males with known or suspected carcinoma of the prostate gland 4. Women who are pregnant (see PRECAUTIONS , Pregnancy ) 5. Patients with serious cardiac, hepatic or renal disease (see WARNINGS )

Drug Interactions Androgens may increase sensitivity to oral anticoagulants. Dosage of the anticoagulant may require reduction in order to maintain satisfactory therapeutic hypoprothrombinemia. Concurrent administration of oxyphenbutazone and androgens may result in elevated serum levels of oxyphenbutazone. In diabetic patients, the metabolic effects of androgens may decrease blood glucose and, th...