If you scroll down to the bottom of the page there are 6 pages of side effects from these drugs that people have complained about. Several of the patients listed bone loss, teeth loss, teeth sensitivity and one yellowing of teeth.
No idea if it's a true cause of the teeth problems, but thought I would post it. This may not even be the type of drug the doctors have given but thought I would post it just in case. So happy you have been given the okay to wean your baby off from meds.