reaction to vitamin b12 injection Are Shots Safe? Royal Palm Beach Medical Group B12 Injections | Highlands Medical

Stronger products may be more likely to cause redness, tingling, itching, dryness, or irritation, especially if your skin barrier is already sensitive

Khorram, O., Laughlin, G

A plain B12 shot contains vitamin B12 only

heterocycle or heterocyclic ring, as used herein except where noted, represents a stable 5- to 7-membered monocyclic-, or stable 7- to 11-membered bicyclic heterocyclic ring system, any ring of which may be saturated or unsaturated, and which consists of carbon atoms and from one to three heteroatoms selected from the group consisting of N, O and S, and wherein the nitrogen and sulfur heteroatoms may optionally be oxidized, and the nitrogen heteroatom may optionally be quaternized, and including any bicyclic group in which any of the above-defined heterocyclic rings is fused to a benzene ring