My sister(30 yrs) delivered 2 month ago through c section. She is breastfeeding as well as providing formula milk..Dr gave her cerazett tab to take it daily. She has thyroid, migraine and was also diagnosed with pcod all before pregnancy and marriage. I would like to know if she can take the medicine on daily basis and on what time? Is this medicine to be taken during periods also? Is it necessary to take without intercourse too? How long it should be taken?