About mesterlone
Androgenic steroid
Used for
- Treatment of confirmed testosterone deficiency in men
- Some countries use it for male infertility associated with low androgen levels
Usual adult dose
Commonly 25–50 mg by mouth three times daily initially; reduced to 25 mg two or three times daily for maintenance, depending on indication.
Common side effects
- Acne
- Headache
- Abdominal pain
- Prolonged or frequent erections
Important warnings
- Not for bodybuilding or routine age-related decline in testosterone.
- Avoid with prostate or breast cancer in men, or serious liver disease.
- Can worsen prostate enlargement; medical monitoring may be needed.
- Seek urgent care for a persistent, painful erection.
Pregnancy
Not for use in pregnancy; it is intended for men.
Breastfeeding
Not for use during breastfeeding; it is intended for men.
Interactions
- May affect anticoagulants such as warfarin; monitoring may be needed.
- Diabetes medicines may require closer blood sugar monitoring.
- Enzyme-inducing medicines, including some seizure medicines, may reduce its effects.
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 It may be incomplete or out of date.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.