Important: This page is general information, not medical advice. It does not recommend or prescribe any treatment. Always consult your doctor or pharmacist before starting, stopping or changing any medicine.
Quick facts
- How it is given
- intramuscular
- Type
- human prescription drug
- RxNorm ID
- 2047882
We do not publish dosing. How much of this medicine to take, how often, and for how long depends on your age, weight, kidney and liver function, other conditions and other medicines. That is a decision for the person who prescribes or dispenses it. Follow the directions on your own pack and ask your pharmacist if anything is unclear.
What it is used to treat
INDICATIONS AND USAGE Testosterone cypionate injection is indicated for replacement therapy in the male in conditions associated with symptoms of deficiency or absence of endogenous testosterone. 1. Primary hypogonadism (congenital or acquired)-testicular failure due to cryptorchidism, bilateral torsion, orchitis, vanishing testis syndrome; or orchidectomy. 2. Hypogonadotropic hypogonadism (congenital or acquired)-gonadotropin or LHRH deficiency, or pituitary-hypothalamic injury from tumors, trauma, or radiation. Safety and efficacy of testosterone cypionate injection in men with “age-related hypogonadism” (also referred to as “late-onset hypogonadism”) have not been established.
About this medicine
DESCRIPTION Testosterone Cypionate Injection, USP, for intramuscular injection, contains testosterone cypionate which is the oil-soluble 17 (beta)- cyclopentylpropionate ester of the androgenic hormone testosterone. Testosterone cypionate is a white or creamy white crystalline powder, odorless or nearly so and stable in air. It is insoluble in water, freely soluble in alcohol, chloroform, dioxane, ether, and soluble in vegetable oils. The chemical name for testosterone cypionate is androst-4-en-3-one,17-(3-cyclopentyl-1-oxopropoxy)-, (17β)-. Its molecular formula is C 27 H 40 O 3 , and the molecular weight 412.61. The structural formula is represented below: Testosterone Cypionate Injection, USP is available as 200 mg/mL testosterone cypionate. Each mL of the solution contains Testosterone Cypionate, 200 mg; Benzyl Benzoate, 0.2 mL; Cottonseed Oil, 560 mg; Benzyl Alcohol (as preservative), 9.45 mg. Structural Formula
Who should not take it
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 )
Warnings
WARNINGS Hypercalcemia may occur in immobilized patients. If this occurs, the drug should be discontinued. Prolonged use of high doses of androgens (principally the 17-α alkyl-androgens) has been associated with development of hepatic adenomas, hepatocellular carcinoma, and peliosis hepatis —all potentially life-threatening complications. Geriatric patients treated with androgens may be at an increased risk of developing prostatic hypertrophy and prostatic carcinoma although conclusive evidence to support this concept is lacking. There have been postmarketing reports of venous thromboembolic events, including deep vein thrombosis (DVT) and pulmonary embolism (PE), in patients using testosterone products, such as testosterone cypionate. Evaluate patients who report symptoms of pain, edema, warmth and erythema in the lower extremity for DVT and those who present with acute shortness of breath for PE. If a venous thromboembolic event is suspected, discontinue treatment with testosterone cypionate and initiate appropriate workup and management. Long term clinical safety trials have not been conducted to assess the cardiovascular outcomes of testosterone replacement therapy in men. To date, epidemiologic studies and randomized controlled trials have been inconclusive for determining the risk of major adverse cardiovascular events (MACE), such as non-fatal myocardial infarction, non-fatal stroke, and cardiovascular death, with the use of testosterone compared to non-use. Some studies, but not all, have reported an increased risk of MACE in association with use of testosterone replacement therapy in men. Patients should be informed of this possible risk when deciding whether to use or to continue to use testosterone cypionate injection. Testosterone has been subject to abuse, typically at doses higher than recommended for the approved indication and in combination with other anabolic androgenic steroids. Anabolic androgenic steroid abuse can lead to serious cardiovascular and psychiatric adverse reactions (see DRUG ABUSE AND DEPENDENCE ). If testosterone abuse is suspected, check serum testosterone concentrations to ensure they are within therapeutic range. […]
Reported side effects
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 Special senses: Rare cases of central serous chorioretinopathy (CSCR). Miscellaneous: Inflammation and pain at the site of intramuscular injection. To report SUSPECTED ADVERSE REACTIONS, contact American Regent, Inc. at 1-800-734-9236 or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .
Interactions with other medicines
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, therefore, insulin requirements.
If too much is taken
OVERDOSAGE There have been no reports of acute overdosage with the androgens.
Storing it safely
Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Protect from light.
Before you take anything new
Tell your pharmacist or doctor about every medicine you take — including ones bought without a prescription, herbal products and supplements. Interactions are one of the most common avoidable causes of harm from medicines, and a pharmacist can check your full list in a couple of minutes.
This page is built from the openFDA record of the U.S. Food and Drug Administration's approved labelling for this product, effective 17 June 2019. Label text has been shortened and reformatted for readability; safety wording has not been altered in meaning. FDA labelling describes products approved in the United States — brand names, strengths, formulations and approved uses may differ in your country. Always read the leaflet that comes with your own pack. PocketsInfo is not affiliated with, and is not endorsed by, the FDA. Retrieved 2026-07-30.