The bothersome combination of dry mouth and bad breath, also known as xerostomia, can be chalked up as yet another common problem caused by prescription drug use. Xerostomia is not to be confused with halitosis, or bad breath, which is typically caused by systemic diseases, gastrointestinal and/or upper respiratory tract disorders, and microbial metabolism fromContinue reading “Dry mouth and bad breath by Dr Mercola”