Nebido (Testosterone Undecanoate)

Testosterone undecanoate, the active ingredient in Nebido, is an androgen; anabolic steroid presented as a 1000 mg per 4 mL (250 mg/mL) intramuscular injection solution for intramuscular use. It treats testosterone deficiency in adult males, including primary and secondary hypogonadism.

GNH USA supplies Nebido as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Nebido is an androgen replacement therapy used to correct testosterone deficiency in men. - Primary hypogonadism: restores physiological testosterone levels to improve libido, energy, muscle mass and bone density. - Secondary hypogonadism: compensates for pituitary or hypothalamic failure, normalising hormonal balance. - Testosterone deficiency in adult males: alleviates symptoms such as fatigue, reduced sexual desire and mood disturbances.

Nebido may be associated with a range of adverse reactions.

Common Side Effects: - Injection site pain: mild to moderate discomfort at the injection site. - Acne: increased sebaceous gland activity leading to skin eruptions. - Fluid retention: mild peripheral oedema in some patients.

Serious or Rare Side Effects: - Cardiovascular events: possible increased risk of myocardial infarction or stroke. - Polycythemia: elevated red blood cell mass requiring monitoring. - Severe allergic reaction: anaphylaxis or angioedema requiring immediate medical attention.

Nebido requires careful clinical monitoring before and during therapy. - Hematocrit monitoring: check regularly to detect polycythemia. - Prostate assessment: evaluate for benign prostatic hyperplasia before initiation. - Cardiovascular risk: assess history of heart disease or thromboembolic events. - Contraindicated in women of childbearing potential: avoid exposure due to androgenic effects. - Liver function: monitor hepatic enzymes periodically. - Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Nebido can interact with several medication classes.

Major Interactions (Avoid): - Warfarin: testosterone may enhance anticoagulant effect, increasing bleeding risk. - Insulin: androgen therapy can alter glucose metabolism, requiring dose adjustments. - Strong CYP3A4 inhibitors: may raise testosterone levels and increase adverse effects.

Moderate Interactions (Monitor Closely): - Antihypertensives: fluid retention may blunt blood pressure control. - Antidepressants: potential for mood alterations when combined. - Other steroid hormones: additive androgenic effects may increase risk of side‑effects.