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 most common place of service is the physician office (POS 11), where joint injections and aspirations are typically performed for pain, effusion, bursitis, or arthritis management
If you have been prescribed tenofovir disoproxil and emtricitabine only, please also see HIV Pre-Exposure Prophylaxis (PrEP) for pharmacies which keep these drugs in stock
Do vegans need to take vitamin B12 supplements
Methylcobalamin is the strongest and most easily absorbed B12 injection available