can my doctor prescribe b12 injections Do You Need A Prescription For B12 Shots & Injections for

Some peptides, mainly those not FDA-approved, may be obtained from compounding pharmacies or unverified sources

Gastric surgery or bowel resection that has removed the part of the gut where B12 is absorbed

The deltoid, thigh and upper outer buttock each have different amounts of tissue over the muscle

As the deficiency may be indistinguishable for either of these essential vitamins, they are often grouped in one product for therapeutic and preventive use

The rationale for combining them is based on mechanistic complementarity (non-overlapping pathways), individual safety profiles, and clinical observations from practitioners administering the combination

PMID: 14501183