vitamin b12 injection uses Are Shots Right for You? Vitamin B12 for Injection Cyanocobalamin
Description
This should be discussed with the provider

Abdallah Fouad, Clinical Nutrition Specialist (25+ years) 17

25 Castelli MC, Friedman K, Sherry J et al (2011) Comparing the efficacy and tolerability of a new daily oral vitamin B12 formulation and intermittent intramuscular vitamin B12 in normalizing low cobalamin levels: a randomized, open-label, parallel-group study
If you have both the digestive issues and the anxiety and palpitations when you swallow it, we wouldn't expect the same thing when you take an injection
