Peptide Graded

Ganirelix

Is Ganirelix legal in the US?

Yes, FDA approved for stopping early egg release during fertility treatment.

AStrong human evidenceFDA approvedas of 2026-10-26

Approved. Ganirelix acetate injection was approved by the FDA in 1999 (originally as Antagon, Organon) for inhibiting premature LH surges in women undergoing controlled ovarian stimulation for fertility treatment. It is sold in the US as ganirelix acetate injection by Organon and others, and as Fyremadel (Ferring); the Antagon name is no longer used. 134

Yes, since 1999. It is used to prevent early LH surges in women having controlled ovarian stimulation. It is sold as ganirelix acetate injection and as Fyremadel. 13

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More on Ganirelix

Citations

  1. Fyremadel (ganirelix acetate) prescribing information drugs.com
  2. Fluker 2001, Fertility and Sterility: efficacy and safety of ganirelix acetate versus leuprolide acetate in women undergoing controlled ovarian hyperstimulation (North American Ganirelix Study Group) doi.org
  3. Organon: ganirelix acetate injection product page organonpro.com
  4. Organon: ganirelix acetate injection prescribing information organon.com

Reference information only, not medical advice. Drawn from the Ganirelix article, fact-checked against the cited sources. No dosing anywhere on this site.