I chose this site when I searched Metformin.
https://www.healthline.com/health/diabetes/metformin-side-effects
I think it some side affect on H=hubby and he had to stop it. That’s when his doc took him off and suggested Metamucil
Thanks.
Mfgr of the Met 1,000 ER is Granules Labs, in India, and they’ve now been cleared from their 2020 voluntary recall. I use Metamucil once-in-a-while, with no side effects from either product.