About choriogonadotropin alfa
Recombinant human chorionic gonadotropin
Used for
- Triggers final egg maturation and ovulation during assisted reproduction treatment.
- May trigger ovulation in selected fertility treatments.
Usual adult dose
Usually 250 micrograms as one injection under the skin, timed by the fertility clinic.
Common side effects
- Injection-site reactions, headache, nausea, or abdominal discomfort.
- Ovarian hyperstimulation syndrome, which can be serious.
- Ovarian cysts or multiple pregnancy.
Important warnings
- Use only under specialist fertility care and monitoring.
- Risk of ovarian hyperstimulation syndrome; seek urgent care for severe pain, swelling, breathlessness, or reduced urination.
- Do not use with certain hormone-sensitive cancers, uncontrolled thyroid or adrenal disorders, or ovarian enlargement unrelated to polycystic ovary syndrome.
- Can cause a false-positive pregnancy test for up to about 10 days.
Pregnancy
Not used once pregnancy is established; it may cause a false-positive pregnancy test soon after injection.
Breastfeeding
Breastfeeding safety is not established; treatment is generally for fertility care before pregnancy.
Interactions
- Other medicines containing human chorionic gonadotropin may increase effects and risks.
- Tell the fertility team about all medicines, especially those used for fertility treatment.
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 It may be incomplete or out of date.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.