About ulipristal acetate
Selective progesterone receptor modulator
Used for
- Emergency contraception after unprotected sex or contraceptive failure.
Usual adult dose
30 mg once, as soon as possible and within 120 hours of unprotected sex.
Common side effects
- Headache
- Nausea
- Abdominal pain
- Menstrual changes
Important warnings
- Not for routine contraception or use during an existing pregnancy.
- May delay the next period; take a pregnancy test if it is substantially late.
- Enzyme-inducing medicines can reduce effectiveness; seek advice about alternatives.
- Wait five days before starting or restarting hormonal contraception; use condoms meanwhile.
Pregnancy
Not intended for use during pregnancy; it does not end an established pregnancy.
Breastfeeding
Avoid breastfeeding for one week after taking; express and discard milk during this period.
Interactions
- Progestogen-containing contraception may reduce effectiveness if started too soon.
- Strong enzyme inducers, including rifampicin, carbamazepine, and St John’s wort, may reduce effectiveness.
- May reduce effectiveness of hormonal contraception; use condoms until the next period.
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 It may be incomplete or out of date.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.