Hey, my friend suggested me an oral supplement to prevent hair fall. I do not remember the exact name of the medicine. I took it twice a day - before the breakfast, and after the dinner. It had a bitter taste and it felt like sticking onto my teeth. I ignored the after- effects and continued using it for about a week. When I noticed that it has produced brownish stains on my teeth, I stopped using that. I think this medicine has induced dental cavities too. I never had a dental problem before and had to undergo an emergency dental treatment from Toronto as I was suffering from cavities. I do not know whether this medicine is behind this condition. But, it all started after I started using this. Is there anybody over here with a similar condition? Have you got any allergic reactions after you started using any medicine?