side effects of the b12 injection : r/B12_Deficiency Common & Rare Side Effects

Frequently Asked Questions about Vitamin B12 Injections Conclusion: Is a B12 Injection Right for You

That said, signs or symptoms that you may be low in vitamin B12 include: fatigue pale skin headaches symptoms of depression stomach issues difficulty focusing or concentrating pain or inflammation in the mouth or on the tongue burning or pins and needles feeling in your hands or feet muscle cramps vision changes Learn more: Signs and symptoms of B12 deficiency

- People with active or recent cancer history (the trial record contains a small number of cancers in the 12-week oral arm

Serious side effects are rare but can include allergic reactions (rash, swelling, difficulty breathing) or, in very specific cases of severe anemia treatment, low potassium levels

however, dedicated cardiovascular outcome trial (CVOT) data have not yet been published, and cardiovascular benefit has not been demonstrated Phase 3 trials are ongoing