Rare side effects of B12 shots (require medical attention) Serious reactions to B-12 shots are uncommon, but its important to be aware of them: Allergic reaction, including rash, hives, dizziness, or trouble breathing Significant swelling, pain, or warmth that worsens at the injection site Palpitations or chest discomfort Signs of drug interactions, especially if you take multiple prescription medications If you experience symptoms that feel intense, progressive, or unusual, you should contact your provider right away
its deficiency causes anemia, fatigue, and weakness
( 10 ) This high dose ensures your body has what it needs to restore optimal function quickly
Your healthcare provider can also diagnose B12 deficiency based on your medical history and physical exam
Kannt A, Rajagopal S, Kadnur SV, et al
This Morning: Dr Ranj outlines the dangers of vitamin B12 Vitamin B12 is important when it comes to the creation of red blood cells in the body