<s>[INST] I lost two children before they were born....one 6 weeks another just before 5 months.  My doc. put me on Duphaston and the 3rd pregnancy went full term.   Now, the daughter who was carried full term has cancer... she is 40 and I want to know if this medicine  had anything to do with that med.  She has already undergone genetic testing and there are  a few red flags. I just want to know that I didn't do anything wrong by taking this drug. [/INST] Hi. Welcome to HCM. Duphaston tablets contain dydrogesterone, a synthetic derivative of the female sex hormone progesterone, that is used to treat a variety of conditions resulting from a lack of endogenous (naturally produced) progesterone. It is used to treat endometriosis (growth of endometrial tissue outside the uterus causing pain and bleeding), infertility and spontaneous abortion (miscarriage) as in your case its prescribed because u had abortions. It is very much recommended in your condition. This has nothing to do with the present cancer that she is having. So don't relate these two and worry unnecessarily. Many pregnant women are prescribed with this drug to prevent abortion. All the best. Regards. </s>