About cyproterone acetate + ethinylestradiol
Antiandrogen and combined hormonal contraceptive
Used for
- Treats moderate-to-severe acne related to androgen sensitivity
- Treats excessive facial or body hair in women
- Prevents pregnancy while treating androgen-related symptoms
Usual adult dose
One tablet daily for 21 days, followed by a seven-day tablet-free interval; repeat as prescribed.
Common side effects
- Nausea, headache, breast tenderness
- Mood changes or reduced sexual desire
- Irregular bleeding or missed periods
- Weight changes
Important warnings
- Increases risk of blood clots, stroke, and heart attack
- Avoid smoking, especially after age 35
- Not suitable with a history of blood clots or certain liver diseases
- Not for acne alone when other treatments are suitable
Pregnancy
Do not use during pregnancy; discontinue if pregnancy occurs.
Breastfeeding
Generally not recommended during breastfeeding, particularly soon after birth; it may reduce milk supply.
Interactions
- Some seizure medicines, rifampicin, and St John’s wort may reduce effectiveness
- Some HIV or hepatitis medicines can alter hormone levels
- May affect lamotrigine levels and seizure control
- Tell clinicians about all medicines and supplements
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 It may be incomplete or out of date.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.