Nebido (Testosterone Undecanoate)

Testosterone undecanoate, the active ingredient in Nebido, is an androgen presented as a 1000 mg/mL intramuscular injection solution for intramuscular use. It replaces deficient endogenous testosterone in adult men with hypogonadism and testosterone deficiency. Nebido is indicated for androgen replacement therapy to restore physiological hormone levels.

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

Nebido (testosterone undecanoate) is used in androgen replacement therapy to restore normal testosterone levels in men.

- Male hypogonadism: restores physiological testosterone concentrations and alleviates associated symptoms such as fatigue, loss of libido, and reduced muscle mass. - Testosterone deficiency: provides exogenous testosterone to compensate for inadequate endogenous production. - Androgen deficiency syndrome: improves secondary sexual characteristics and overall quality of life in affected males.

Nebido may cause a range of adverse reactions. Patients should be aware of both common and serious possibilities.

Common Side Effects: - Injection site pain or erythema - Headache - Acne or oily skin - Increased hematocrit - Fluid retention or edema - Mood changes

Serious or Rare Side Effects: - Polycythemia leading to thrombosis - Cardiovascular events such as myocardial infarction - Prostate enlargement or cancer progression - Severe hypertension - Allergic reactions including anaphylaxis - Liver function abnormalities

Before initiating Nebido, clinicians should consider several safety measures.

- Screen for prostate disease: assess prostate-specific antigen and digital exam. - Monitor hematocrit: periodic blood tests to detect polycythemia. - Evaluate cardiovascular risk: use caution in patients with known heart disease. - Avoid in known hypersensitivity: discontinue if allergic reaction occurs. - Contraindicated in women and children: not indicated for pregnancy or lactation. - Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Nebido can interact with several medications; awareness of interaction severity guides management.

Major Interactions (Avoid): - Warfarin: may potentiate anticoagulant effect and increase bleeding risk. - Insulin: testosterone can alter glucose metabolism, requiring dose adjustments. - Strong CYP3A4 inhibitors: may raise testosterone levels and risk of adverse effects. - Glucocorticoids: may diminish the therapeutic response of testosterone. - Estrogen therapy: antagonistic hormonal actions may reduce efficacy.

Moderate Interactions (Monitor Closely): - Antihypertensives: blood pressure may change, necessitating monitoring. - Statins: potential for increased liver enzyme elevations; regular liver function tests advised.