I Have Dental Problems The Last Couple Of Years Which

i have dental problems the last couple of years which is i have loose teeth and i started to notice that when i take the medicine(last couple of years i have increased my dosage to unhealthy amount) leaving a metal taste in my mouth. but would loosen a few of my teeth.Over the next couple of weeks they would tighten back up then when i would take another dose and i would wake up with a couple of my teeth loose. is their any thing that can explain this.Is their any dissolving of my gums.im gonna stop taking them