My friend is in ivf treatment. Currently she is in middle stage (embryo transfer done in the 2nd week of january 2023). She is taking trental 400 mg tablet regularly in the morning and night after food (as per doctor instruction from ivf clinic). She is getting vomiting after few hours (sometime in one hour or after 6 hours of tablet taken) and tablet (trental 400 mg) is coming out each and every time. I would like to know the tablet's real properties. Is it useful for ivf treatment? Or this particular tablet is used to create vomiting?