Can Folvite Cause Any Side Effects If Take For Long Term?

Hi i have PCOD PROB my periods are irrugular for 10 days to 15 days at present my doctor suggested me to have Folvite 5 Mg till concive is there any side effects for this tab and how long i should continue with this tablets, my age is 25 and heigt is 5.3 my weigt is 60