My 3 year old Ds had an ear infection and was prescribed Augmentin Oral suspension - a form of Amoxicillin to take for one week. I gave him the full course. A few days after he'd finished the course I noticed that his teeth had brown, yellow and white discolouration/stains. I think the drug must have caused it as I cant see any other cause and they all looked stained suddenly . He has always had beautiful pearly white teeth until now and I have done my best to regularly brush them twice daily. So I am quite dismayed! The thing is I have never heard of this reaction before and it is not on the list of possible adverse reactions on the medicine info. Can anyone enlighten me please or tell of similar experiences? Will it effect his adult teeth later too? Is it possible to get the teeth back to how they were? Thanks.