Head-to-head comparisons of medication uses, side effects, warnings, and more.
Cetrorelix (Cetrotide)
Ganirelix (Fyremadel)
Cetrorelix (Cetrotide)
Ganirelix (Fyremadel)
Summary of Cetrorelix vs. Ganirelix
Summary for GnRH antagonist
Prescription only
Cetrorelix (Cetrotide) is an injectable fertility medication that's used during in vitro fertilization (IVF). It belongs to a drug class called GnRH antagonists. It helps prevent your body from releasing eggs too early before egg retrieval in the IVF process. You typically inject a dose of the medication under the skin once a day on certain days of the IVF cycle. Potential side effects include ovarian hyperstimulation syndrome, nausea, and headache.
Summary for GnRH antagonist
Prescription only
Ganirelix (Fyremadel) is an injection that's given on certain days during the in vitro fertilization (IVF) process for people who have a hard time becoming pregnant. This medication is a gonadotropin-releasing hormone (GnRH) antagonist. It prevents your eggs from being released too soon before the egg retrieval step. Ganirelix (Fyremadel) is injected under the skin once daily during a certain number of days of the IVF cycle. Potential side effects include stomach pain, headache, and redness and swelling at the injection site.