What it's used for
Testosterone enanthate injection is used as replacement therapy in males for conditions associated with a deficiency or absence of endogenous testosterone, such as primary or hypogonadotropic hypogonadism.
Source: U.S. FDA-approved prescribing information (openFDA).
Typical dosing
Dosage and duration depend on age, sex, diagnosis, patient response, and adverse effects, after confirming low morning serum testosterone levels.
Dosing shown here is the general FDA-labeled range. Your prescribing clinician determines the exact dose, form, and schedule for you — this is not a substitute for medical advice.
Boxed warning / key safety info
In patients with breast cancer and in immobilized patients, androgen therapy may cause hypercalcemia by stimulating bone breakdown.
Common side effects
In females, common side effects of androgen therapy include menstrual irregularities, inhibition of gonadotropin secretion, and virilization such as deepening of the voice and clitoral enlargement.
Covered strengths on the Tab $0 list
Covered at $0 with an active Tab membership when filled at a participating pharmacy nationwide or through mail order. A licensed clinician must prescribe the medication.
Related medications
Other everything else medications covered at $0 with an active Tab membership.
Testosterone Enanthate dosage and administration
Prior to initiating testosterone enanthate injection, confirm the diagnosis of hypogonadism by ensuring that serum testosterone concentrations have been measured in the morning in the morning on at least two separate days and that these serum testosterone concentrations are below the normal range. Dosage and duration of therapy with testosterone enanthate injection will depend on age, sex, diagnosis, patient’s response to treatment, and appearance of adverse effects. When properly given, injections of testosterone enanthate are well tolerated. Care should be taken to slowly inject the preparation deeply into the gluteal muscle, being sure to follow the usual precautions for intramuscular administration, such as the avoidance of intravascular injection (see PRECAUTIONS ).
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Your prescribing clinician decides the exact dose, form and schedule for you — this is not medical advice.
Testosterone Enanthate side effects
Endocrine and Urogenital, Female – The most common side effects of androgen therapy are amenorrhea and other menstrual irregularities, inhibition of gonadotropin secretion, and virilization, including deepening of the voice and clitoral enlargement. The latter usually is not reversible after androgens are discontinued. When administered to a pregnant woman, androgens cause virilization of the external genitalia of the female fetus. Male – Gynecomastia, and excessive frequency and duration of penile erections. Oligospermia may occur at high dosages (see CLINICAL PHARMACOLOGY ). Skin and Appendages – Hirsutism, male pattern baldness, and acne. Cardiovascular Disorders – myocardial infarction, stroke Fluid and Electrolyte Disturbances – Retention of sodium, chloride, water, potassium, calcium (see WARNINGS ), and inorganic phosphates.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. This is not a complete list. Report side effects to your clinician, and seek care for anything severe or unexpected.
Testosterone Enanthate drug interactions
When administered concurrently, the following drugs may interact with androgens: Anticoagulants, oral – C-17 substituted derivatives of testosterone, such as methandrostenolone, have been reported to decrease the anticoagulant requirement. Patients receiving oral anticoagulant therapy require close monitoring especially when androgens are started or stopped. Antidiabetic drugs and insulin – In diabetic patients, the metabolic effects of androgens may decrease blood glucose and insulin requirements. ACTH and corticosteroids – Enhanced tendency toward edema. Use caution when giving these drugs together, especially in patients with hepatic or cardiac disease. Oxyphenbutazone – Elevated serum levels of oxyphenbutazone may result.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Tell your clinician and pharmacist about every medication, supplement and over-the-counter product you take.
Who should not take testosterone enanthate
Androgens are contraindicated in men with carcinomas of the breast or with known or suspected carcinomas of the prostate and in women who are or may become pregnant. When administered to pregnant women, androgens cause virilization of the external genitalia of the female fetus. This virilization includes clitoromegaly, abnormal vaginal development, and fusion of genital folds to form a scrotal-like structure. The degree of masculinization is related to the amount of drug given and the age of the fetus and is most likely to occur in the female fetus when the drugs are given in the first trimester. If the patient becomes pregnant while taking androgens, she should be apprised of the potential hazard to the fetus. This preparation is also contraindicated in patients with a history of hypersensitivity to any of its components.
Excerpt from the FDA-approved prescribing information (openFDA), retrieved 2026-09-15. Whether this medication is appropriate for you is a clinical decision made by your prescribing clinician.
Common questions
Is testosterone Enanthate covered at $0 with Tab?
Yes. Testosterone Enanthate is on Tab's covered $0 generic list — every covered strength is $0 with an active membership, at participating pharmacies nationwide or by mail order.
Do I need insurance to get testosterone Enanthate through Tab?
No. Tab is a membership, not insurance. Covered medications are $0 with an active membership whether or not you have a health plan.
What is the usual dose of testosterone enanthate?
Prior to initiating testosterone enanthate injection, confirm the diagnosis of hypogonadism by ensuring that serum testosterone concentrations have been measured in the morning in the morning on at least two separate days and that these serum testosterone concentrations are below the normal range. (FDA-approved label, retrieved 2026-09-15. Your clinician sets your dose.)
What are the side effects of testosterone enanthate?
Endocrine and Urogenital, Female – The most common side effects of androgen therapy are amenorrhea and other menstrual irregularities, inhibition of gonadotropin secretion, and virilization, including deepening of the voice and clitoral enlargement. The latter usually is not reversible after androgens are discontinued. (FDA-approved label, retrieved 2026-09-15.)
What interacts with testosterone enanthate?
When administered concurrently, the following drugs may interact with androgens: Anticoagulants, oral – C-17 substituted derivatives of testosterone, such as methandrostenolone, have been reported to decrease the anticoagulant requirement. Patients receiving oral anticoagulant therapy require close monitoring especially when androgens are started or stopped. (FDA-approved label, retrieved 2026-09-15. Tell your clinician about every medication and supplement you take.)
Testosterone Enanthate is $0 on the covered list
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