Testosterone Enanthate
Cas No 315-37-7


Side Effects of Testosterone Enanthate - for the Consumer
Testosterone Enanthate

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Testosterone Enanthate:

Acne; bitter or strange taste in mouth; change in sex drive; fatigue; gum or mouth irritation; gum pain; gum tenderness or swelling; hair loss; headache.

Seek medical attention right away if any of these SEVERE side effects occur when using

Testosterone Enanthate:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); breast growth or pain; change in the size or shape of the testicles; changes in menstrual periods; coughing fit; dark urine or light-colored bowel movements; depression or mood changes; dizziness; facial hair growth; gingivitis; interrupted breathing while sleeping; loss of appetite; nausea; painful or prolonged erection; shortness of breath; stomach pain; swelling of the ankles or legs; urination problems; voice changes or hoarseness; weight gain; yellowing of the skin or eyes.

Testosterone Enanthate Side Effects - for the Professional
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. 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.

Skin and Appendages - Hirsutism, male pattern baldness, and acne.

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, peliosis hepatis.

Hematologic - Suppression of clotting factors II, V, VII, and X; bleeding in patients on concomitant anticoagulant therapy; polycythemia.

Nervous System - Increased or decreased libido, headache, anxiety, depression, and generalized paresthesia.

Metabolic - Increased serum cholesterol.

Miscellaneous - Rarely, anaphylactoid reactions; inflammation and pain at injection site.

Side Effects by Body System
Cardiovascular

Cardiovascular side effects have included hypertension, and edema with and without congestive heart failure.

Endocrine
Endocrine side effects have included gynecomastia as a frequent and sometimes persistent side effect. Cautious use is recommended in patients with existing gynecomastia.

During exogenous administration of androgens, endogenous testosterone release is inhibited through feedback inhibition of pituitary luteinizing hormone (LH). Large doses of exogenous androgens may suppress spermatogenesis through inhibition of pituitary follicle stimulating hormone (FSH).

Androgens may decrease levels of thyroxin binding globulin resulting in decreased total T4 serum levels and increased resin uptake of T3 and T4. Free thyroid hormone levels remain unchanged and there is no clinical evidence of thyroid dysfunction.

Changes in insulin sensitivity or glycemic control may occur in patients treated with androgens. In diabetic patients, the metabolic effects of androgens may decrease blood glucose and, therefore, insulin requirements.

Virilization of children has been reported due to secondary exposure to testosterone. Signs and symptoms have included inappropriate enlargement of the penis or clitoris, premature development of pubic hair, increased erections and libido, aggressive behavior, and advanced bone age. In most cases, these signs and symptoms regressed with removal of the exposure to testosterone. In a few cases, however, enlarged genitalia did not fully return to age-appropriate normal size and bone age remained modestly greater than chronological age.

Renal
Renal side effects have included retention of nitrogen, sodium, potassium, chloride, water and phosphorus, and decreased urinary excretion of calcium.

Hepatic
Hepatic side effects have included life-threatening peliosis hepatitis and hepatic abnormalities including hepatic neoplasms and hepatocellular carcinomas following prolonged therapy with high doses of androgen. Tumor regression did not occur in all cases following medication withdrawal.

Cholestatic hepatitis, jaundice, and abnormal liver function tests have occurred during androgen therapy. Drug-induced jaundice is usually reversible following drug discontinuation.

Genitourinary
Genitourinary side effects following chronic administration and/or large dosages of testosterone have included oligospermia and decreased ejaculatory volume. Elderly male patients have experienced prostatic enlargement resulting in urinary obstruction. Priapism and excessive stimulation has developed. Other urinary side effects have included nocturia, urinary hesitancy, urinary incontinence, urinary retention, urinary urgency, and weak urinary system.

In female patients the use of androgens has resulted in virilization including deepening voice, hirsutism, acne, clitomegaly (not reversible), and menstrual abnormalities. Discontinuation of testosterone at signs of mild virilization may prevent irreversible virilization.

Metabolic
Metabolic side effects have included osteolytic-induced hypercalcemia in immobilized patients or those with metastatic breast disease. Increased cholesterol levels and acute intermittent porphyria have been reported.

Other
Other side effects have included virilization in female patients. Virilization included deepening voice, hirsutism, acne, clitomegaly (not reversible), and menstrual abnormalities.

Female sexual partners of men using topical testosterone (residual on skin) have reported virilization.

Dermatologic
Dermatologic side effects have included hirsutism, acne, male-patterned baldness and seborrhea. Dermal reactions have been the most commonly reported side effects for transdermal testosterone and occur primarily at the site of application. Dermal effects have included 3 types: irritation including mild to moderate erythema (to 6%), induration (3%), itching (12%), and burning (3%); allergic contact dermatitis including pruritus (to 37%), vesicles (6%), and rash (2%); and burn-like blisters (12%).

Discontinuation rates for transdermal testosterone were as follows: due to chronic skin irritation (5%), allergic dermal reactions (4%), and burn-like, usually a single site (0%).

Triamcinolone 1% cream applied sparingly to skin under the reservoir reduced irritation and did not interfere with testosterone absorption. Ointment formulations reduce testosterone absorption.

Gastrointestinal
Gastrointestinal side effects have included nausea and vomiting.

Musculoskeletal
Testosterone is involved in termination of linear bone growth by closure of the epiphyseal growth centers. Appropriate monitoring of bone age is recommended during testosterone use in healthy males with delayed puberty.

Musculoskeletal side effects have included myalgia and pain.

Hematologic
Hematologic side effects have included alteration in clotting factors II, V, VII and X and polycythemia due to increased red cell production. Anemia has also been reported.

Hypersensitivity
Hypersensitivity side effects have included rash and anaphylactoid reactions.

Local
Local side effects have included inflammation and pain at injection or dermal application site.

Nervous system
Nervous system side effects have included altered libido (increased/decreased), headache (to 5%), anxiety, depression, generalized paresthesia, or sleep apnea syndrome.

Oncologic
Oncologic side effects have included carcinoma of the prostate, hepatic neoplasms, and hepatocellular carcinomas.

Respiratory
Respiratory side effects have included reports of potentiation of sleep apnea, particularly in obese patients or those with chronic lung disease. There have been rare postmarketing reports of transient reactions involving urge to cough, coughing fits, and respiratory distress immediately after the injection of testosterone enanthate, an oil-based depot preparation.