I didn't have a problem with my voice using non- extended release metformin just when she changed me over to the extened release formula because of massive diareaha issues. My voice is low and horse no sore throat or cold symptoms. I tried a day of non-extended metformin and my voice was fine, went back to ER formula and my voice went horse with the 1st pill.
Have been on Metformin 2/day for 4 years, one side effect I noticed immediately was dry mouth. It seems to affect all mucous membranes, including my sinuses, airways, even my eyes! If I sleep longer than 1-2 hours, I must clear my throat several times to be able to speak normally. It is annoying (and sometimes embarrassing) but I have learned to live with it. As far as actually "losing" my voice, no, nothing like an upper-respiratory infection or any kind of vocal cord constriction might.
- Metformin Information for Consumers
- Metformin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Metformin (detailed)
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