I don't take that med but if it were me, and that side effect didn't go away after a couple of weeks, I would be checking in with my doctor and seeing if there was anything else I could use.

Been on it for years with no real side effects. One of the lucky ones I guess.

Been on the medication for three years so far no problems

Now that you said it about phlegm and dry mouth I understand I sometimes feel that too, I boil Peachtree leaves an hour before breakfast and dinner time since then it has sudsided

I take metformin and I am ok with it, sometime it will make my stomach hurt , but that is it.