Methyltestosterone Side Effects

Brand Names: Android

Please note - some side effects for Methyltestosterone may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

Side Effects of Methyltestosterone - for the Consumer

Methyltestosterone

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 Methyltestosterone:

Abnormal hair growth; abnormal skin sensations; acne; anxiety; baldness; breast growth; changes in sexual desire; general body discomfort; headache; mood changes.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); ankle swelling; changes in menstrual periods; changes in skin color; deepening of the voice; depression; frequent or persistent erections; hoarseness; more hair on the face; nausea; new lumps or pain; trouble urinating; unusual bruising or bleeding; vomiting; weight gain; yellowing of the skin or eyes.

Side Effects by Body System

Cardiovascular

Cardiovascular effects have included edema (with and without congestive heart failure).

Endocrine

Endocrine side effects have included gynecomastia. 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 thyroxine-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.

Renal

Renal side effects have included retention of nitrogen, sodium, potassium, chloride, water, and phosphorus and decreased urinary excretion of calcium. Patients should be instructed to report edema.

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 reversible following drug discontinuation.

Genitourinary

Genitourinary side effects have included oligospermia and decreased ejaculatory volume following chronic administration and/or large dosages of androgens. Elderly male patients may experience prostatic enlargement resulting in urinary obstruction. Priapism and excessive stimulation may develop. Methyltestosterone should be discontinued if any of these effects occur. If continued therapy is necessary, resume methyltestosterone at a lower dosage.

In female patients the use of androgens has resulted in virilization, including deepening voice, hirsutism, acne, clitomegaly (not reversible), and menstrual abnormalities. Discontinuation of methyltestosterone 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.

Androgens affect electrolyte balance, nitrogen retention, and urinary calcium excretion. Edema, with and without congestive heart failure has occurred during testosterone therapy.

Androgens have precipitated acute intermittent porphyria.

Increased cholesterol levels have occurred during androgen therapy.

Dermatologic

Dermatologic side effects have included hirsutism, acne, male-patterned baldness and seborrhea.

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. Monitoring of bone age is recommended during methyltestosterone treatment in healthy males with delayed puberty.

Myalgia and pain have been reported.

Hematologic

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

Hypersensitivity

Hypersensitivity side effects have included rare reports of 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, anxiety, depression, generalized paresthesia, or sleep apnea syndrome.

Oncologic

Oncologic side effects have included hepatic neoplasms and hepatocellular carcinomas following prolonged therapy with large doses of androgens.

Respiratory

Respiratory side effects have included potentiation of sleep apnea, particularly in obese patients or those with chronic lung disease. Androgen therapy for hypogonadal conditions has been reported to

Other

Other side effects have included virilization including deepening voice, hirsutism, acne, clitomegaly (not reversible), and menstrual abnormalities in female patients. Discontinuation of methyltestosterone at signs of mild virilization may prevent irreversible virilization.

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