Are There Any Side Effects From Taking Lariago DS During Pregnancy?

I m 8 month pregnant. My doctor prescribed me lariago - ds 500mg. And advice me to take every sunday from starting of my pregnancy. One of my friend told me it is very dangerous to take during pregnancy. I am normal. I don t have any kind of diseases or any abnormalities. I am in worries... What will be happened to me or my baby ...? What are the side effects? What can I do now? Plz help me.