Mesterolone
Mesterolone is a synthetic androgen (male sex hormone) used primarily in men to treat conditions associated with androgen deficiency. It is an orally active derivative of dihydrotestosterone that helps restore normal testosterone levels and address symptoms of low androgens. This medication is typically prescribed when the body cannot produce adequate amounts of natural testosterone.
Mesterolone is an oral androgen medication used to treat androgen deficiency in men.
Key facts at a glance
- ATC
- G03BB01
- RxNorm
- 6781
- Generic
- Mesterolone
- Class
- atc-g03
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- tablet
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of male hypogonadism (testosterone deficiency), androgen deficiency symptoms such as low libido, fatigue, and mood changes. May also be used in certain cases of male infertility and delayed puberty in adolescents.
Mesterolone is a synthetic androgen that binds to androgen receptors in target tissues throughout the body. It produces androgenic effects similar to natural testosterone, helping to restore normal male hormone levels and support the development and maintenance of male characteristics and reproductive function.
This medication is for use in men only and is not indicated for women. It should be used under medical supervision with regular monitoring of hormone levels and potential side effects. Common side effects may include acne, hair growth, and mood changes. It may affect liver function with prolonged use.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy