how often do you have b12 injection Dosage and Frequency: 7 Guidelines for Adults Are Vitamin B12 Shots Right
Description
Mild redness or soreness at the injection site may occur but typically resolves quickly

(PubMed) Hutto BR

Then the whole day I felt body aches, fatigue, and sensitive skin, much like the feeling of getting a cold

Ann Surg Oncol 18 , 37113717 (2011)

Friendly Safety Note: This service may not be appropriate for everyone
