What Is Valprol Used For?

hi doc, this is rajesh from new delhi well, doc the problem is that i am engaged with beautiful girl who is also from our comunity and all my family members n me are very happy about this relation but now i found that the girl had some medical problem in past n her doc recomend her an valprol cr 300 tab once in day since last 10 years she will taking a pill in day so i wann know that whats this tab is used for n is it effect our marrige life ?