why does the b12 injection hurt Benefits of Vitamin Shots Best Vitamin B12 Injection Site:
Description
3 Vitamin B12 Shots Are Safe All vitamin shots are water-soluble and safe

D51.9 - Vitamin B12 deficiency, unspecified : This code is utilized when the exact cause of Vitamin B12 deficiency is not specified in the medical records

Avoid acidic buffers or low-pH solutions which may destabilise the copper complex
Hao S, Xiang J, Wu D-C, et al