HELLO DEAR I understand your concern,Navidoxine is combination of two drugs, pyridoxine and Meclizine . Meclizine comes in FDA category B it means that we may use it if its benefits outweigh the risk. Pyridoxine is very good to prevent nausea in small doses that is 25 mg, maximum three times in a day. Since organogenesis period have been passed and you feel comfortable then you can continue drug I hope that you have received proper advise about diet changes, and you are getting proper emotional support. Diet, you should take small, and frequent meals. Avoid fatty meals.Take food rich in carbohydrate and protein. Ginger, and lemonade, helps in relieving heartburn. All the best THANKS