Dr. Edward Ramirez is the medical director of Monterey Bay IVF, a women's fertility & gynecology center located in Monterey, California. He hopes to provide those who read his infertility blog with insights into the latest advances in women's health & infertility issues. He respectfully shares his knowledge as a specialist with women and men from all over the world. Visit his center at www.montereybayivf.com
Prometrium Vs. Endometrim For Luteal Phase Support In IVF
Dear Dr. Ramirez,
I've written to you before about luteal phase bleeding. We've tried 3 IUI's, but my husband's morphology has been consistently 0%, so we are moving on to IVF with ICSI.
My RE has me on a long protocol (BCP, Synarel, Puregon, Repronex). My main concern is luteal phase support. My RE plans to have me on 200mg of Prometrium PV TID starting the evening of retrieval... During my last natural cycle I tried this dose of Prometrium and I still had some breakthrough bleeding (but not everyday). Do you think that this is sufficient luteal phase support for someone with a history of luteal bleeding? My RE is doing a hysteroscopy next week to rule out other causes.
Thank-you for your time, L. from Canada
29yo, secondary infertility
Hello L. from Canada,
The dosage of prometrium that your doctor has prescribed is certainly adequate for luteal phase support but is not the mainstay with IVF treatments. The gold standard is injectable progesterone 50 mg per day starting on the day of the retrieval. The alternatives that have been studied with IVF are Endometrin 100 mg vaginally three times per day or Crinone 8%/Prochieve 8% vaginally each morning. I double up and use the progesterone injection and the Endometrin or Crinone together to make sure that I have adequate progesterone coverage. So, prometrium can be used but is not the medication of choice with IVF. It is the cheapest alternative however.