<s>[INST] My son is taking methadone and his teeth are giving him problems.  They ache and he has had to have some pulled then another tooth will begin to ache.  The dentist has prescribed antibiotics where he lives but he wont be home until next week.  Can this be dangerous to wait that long?  Is this a common problem?  Can you suggest a website that people actually write their experiences with methadone on??? [/INST] Hi. Thanks for the query. Yes, Methadone can be a cause for decaying of teeth but as an indirect effect. This is because Methadone can cause Chat Doctor. As saliva plays an important role in continuous cleaning of teeth therefore in absence of optimum amounts of saliva there can be increased decaying of teeth due to reduced flushing debris from the teeth. Waiting for a week under antibiotic cover is fine, and you need not worry about it, but you should get the cause ruled out and work on it. If it is due to  </s>