Hi I Have Pcos But No Irregular Periods. I Ovulate

Hi I have pcos but no irregular periods. I ovulate on day 17.Doctor asked to try to conceive normally and have been suggested to take susten 200 between 15 to 25 days. Single dosage in the morning but Am feeling dizziness after having that tablet.also having folvite mg with that. First month had no such feeling now this month am getting so.should I continue taking it or not.is it safe? Need ur suggestion pls do the needful