vitamin b12 injection dose for dogs 3000 mcg Cobalamin Information - Gastrointestinal Laboratory
Description
Hydroxocobalamin is another active form of vitamin B12 and the precursor of methylcobalamin and adenosylcobalamin

doi: 10.4239/wjd.v2.i2.19

Standard Monthly Maintenance Most people get B12 shots monthly

That said, any injection can cause minor issues like pain, redness, or bruising at the injection site