Nebido (Testosterone Undecanoate)

Testosterone undecanoate, the active ingredient in Nebido, is an androgen presented as an intramuscular injection for intramuscular use. It is indicated for the treatment of male hypogonadism and testosterone deficiency in adult men, helping to restore normal physiological testosterone levels.

GNH USA supplies Nebido as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with distribution across EU and other regulated markets.

Nebido is an androgen replacement therapy used to address conditions related to insufficient endogenous testosterone. - Male hypogonadism: restores serum testosterone to physiological ranges, improving symptoms such as fatigue and reduced libido. - Testosterone deficiency: supports normal sexual function, muscle mass, and bone density in affected men. - Secondary hypogonadism: provides exogenous testosterone when pituitary or hypothalamic dysfunction limits natural production.

Nebido may cause a range of adverse reactions, varying from mild to serious.

Common Side Effects: - Injection site pain: mild discomfort at the injection site. - Acne: increased sebaceous gland activity. - Fluid retention: mild edema, especially in lower extremities. - Increased red blood cell count: polycythemia risk. - Breast tenderness: occasional gynecomastia. - Elevated libido: heightened sexual desire.

Serious or Rare Side Effects: - Polycythemia: excessive hematocrit requiring monitoring. - Cardiovascular events: potential increased risk of thrombosis. - Liver toxicity: rare hepatic enzyme elevations. - Prostate enlargement: possible worsening of benign prostatic hyperplasia. - Severe hypertension: significant blood pressure rise. - Allergic reactions: anaphylaxis or severe skin rash.

Nebido requires careful patient assessment and monitoring. - Cardiovascular assessment: evaluate history of heart disease before initiation. - Hematocrit monitoring: check blood counts regularly to detect polycythemia. - Prostate evaluation: screen for prostate cancer or BPH prior to therapy. - Liver function: assess hepatic enzymes periodically. - Pregnancy and breastfeeding: contraindicated; avoid exposure in women of childbearing potential. - Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Nebido can interact with several medications, altering efficacy or safety.

Major Interactions (Avoid): - Anticoagulants (e.g., warfarin): increased bleeding risk. - Insulin or oral hypoglycemics: may affect glucose control. - CYP3A4 inhibitors (e.g., ketoconazole): raise testosterone levels.

Moderate Interactions (Monitor Closely): - Glucocorticoids: may exacerbate fluid retention. - Statins: potential for altered lipid metabolism. - Antihypertensives: possible attenuation of blood pressure control.