lump under skin from b12 injection site Best Vitamin Site: Administering B12 Shots B12 Shots Side Effects And
Description
Not recommended for pregnant or nursing mothers

Although more research is needed to solidify these findings, evidence published by the American Academy of Pain Medicine points to the efficacy of B12 as an adjunctive treatment alongside lidocaine for pain management

Genuine side effects are uncommon but include cystic acne (particularly with injections), rare allergic or skin reactions linked to cobalt sensitivity, and occasional headaches after large IM doses

A double blind placebo controlled study of the effects of AOD9604 in overweight and obese subjects human rct Stier H, et al