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effects of vitamin b12 injection Side (Common and Serious) does b12 injection lighten skin
Description
A high vitamin B12 blood level is possible

FDA & Compounding Disclaimers 1

Metformin: Commonly prescribed for diabetes, metformin can affect the absorption of B12 in the gut over time
Antioxidants (Basel) 9 , 759 (2020)

this aids absorption of the drug and reduces pain (Dougherty and Lister, 2015)
