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b12 injections for dogs side effects Vitamin and Dogs: Is Your Dog Deficient? – AnimalBiome Vitamin B-12 1000mcg - Injection
Description
Rare side effects include: hypokalemia, muscle weakness, allergic reaction symptoms such as shortness of breath or hives

[DOI] [PMC free article] [PubMed] [Google Scholar] 76

Then, seven shots are given on alternate days

Vegetarians, vegans, and people who eat little animal protein may fall short
