Can I Give My Dog generic methyl/cyanocobalamin?
Yes, with care
Vitamin B12 (oral cobalamin) is commonly referenced for dogs at published doses. Published guidance for dogs: small: 250 mcg; medium: 500 mcg; large: 1000 mcg daily, every 24h. Water-soluble, wide safety margin. GI-disease dogs often need vet-administered injections instead, oral absorption is the problem being treated.
Source: Veterinary Partner (VIN)
The safe habit
Confirm any medication decision with your veterinarian, who knows your dog's health history and other medications. VetDose shows published reference data, not prescriptions.