Risks and Side Effects While generally safe, vitamin B12 injections can have side effects or risks, such as: Mild pain, swelling, or redness at the injection site Dizziness, headache, or nausea Allergic reactions (rare) Hypokalemia (low potassium levels) in individuals with severe deficiency undergoing treatment People with allergies to cobalt or who have Lebers disease should avoid B12 injections unless specifically advised by a doctor
The 2026 FDA Update What Happened Before In 2023 and 2024, the FDA told pharmacies to stop making BPC157 and TB500 because there was not enough safety data
Dont Stop Your Pernicious Anemia Treatment Most PA patients will have to remain on B12 shots for life , because their bodies cant absorb B12 otherwise
As a PeRx advisory board member, he advises on clinical strategy across the peptide catalog, with particular depth in skin health, aesthetics, and recovery, and pairs that clinical lens with health-management training to keep the patient experience simple and safe
So if you're on a vegan or vegetarian diet where you're not eating foods from animals, you're at risk for B12 deficiency