Adverse reactions after a B12 injection may include: A feeling of tightness in the chest Anaphylaxis (difficulty breathing or swallowing) Chest pain Congestive heart failure Heart palpitations Pulmonary edema Rapid heartbeat (tachycardia) Shortness of breath Vascular thrombosis Musculoskeletal Effects Your musculoskeletal system makes up your bones, tendons, cartilage, and connective tissues
Archived from the original on 16 January 2017
They are not intended for human consumption, clinical use, diagnostic use, therapeutic use, veterinary use, cosmetic use, or dietary supplement use
Preservation requirements Water-based formulations support microbial growth
We will gladly answer your questions, take our time and help you determine if this is the right treatment for you
They may include: Slight discomfort at the injection site Mild redness or swelling Temporary dizziness Mild headache Serious side effects are uncommon, but it is important to discuss medical history, allergies, medications, and any concerns before treatment