About testosterone
Androgen hormone
Used for
- Testosterone replacement in men with confirmed deficiency
- Delayed puberty in selected boys under specialist care
Usual adult dose
For deficiency, short-acting testosterone esters commonly use 50–100 mg injected into muscle weekly. Dose and interval depend on formulation and response.
Usual dose in children
For delayed puberty, short-acting esters may use 50–100 mg into muscle every four weeks for a limited course under specialist care.
Common side effects
- Acne and oily skin
- Injection-site pain
- Fluid retention
- Increased red blood cell count
Important warnings
- Can raise blood pressure; requires regular monitoring
- Can reduce sperm production and fertility
- Avoid in known or suspected prostate or male breast cancer
- Requires testosterone, blood count, and appropriate prostate monitoring
Pregnancy
Contraindicated during pregnancy; testosterone can harm fetal development.
Breastfeeding
Not recommended during breastfeeding; may affect the infant and reduce milk production.
Interactions
- Warfarin: may increase anticoagulant effects
- Insulin: requirements may decrease
- Corticosteroids: may increase fluid retention
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.