Dr. I Have Been Recommended Navidoxine By My Doctor For

Dr. I have been recommended navidoxine by my doctor for nausea in pregnancy instead of dosil plus which wasnt available in the pharmacies we asked. But the problem is that i dont have severe nausea just an uncomfortable feeling specially after i have a proper meal. So is it okay for me to have navidoxine? And if so, how many times a day?