The Merck injection, specifically Cetrotide (cetrorelix acetate) 250 mcg injection, is used to prevent premature ovulation in women undergoing controlled ovarian stimulation for fertility treatment.
Here's a more detailed explanation:
- Purpose: Cetrotide is an antagonist medication. In simpler terms, it blocks the action of gonadotropin-releasing hormone (GnRH). GnRH normally triggers the release of luteinizing hormone (LH), which, in turn, causes the egg to be released from the ovary (ovulation).
- In Fertility Treatment: During fertility treatments like in-vitro fertilization (IVF), doctors want to control when ovulation occurs. Cetrotide prevents the eggs from being released too early, ensuring they mature properly before retrieval for fertilization. This controlled ovarian stimulation improves the chances of successful fertilization.
- How it Works: By blocking GnRH, Cetrotide prevents the surge of LH that would normally lead to ovulation. This gives doctors precise control over the timing of egg retrieval.
- Administration: It's typically administered as a subcutaneous injection (under the skin).
In summary, the Merck injection (Cetrorelide) is a crucial component of many fertility treatments, allowing for better control over the ovulation process and improving the chances of successful pregnancy.
