mayo clinic vitamin b12 injections Should You Take Natural vs. Synthetic B12? Vitamin B12 + MIC Injections

You may get several shots the first week or two after, but then decrease the frequency to once a month, while still maintaining the benefits

Other possible symptoms may include headache or tiredness

This includes picking the right needle and making sure the area is clean and safe

Vitamin B12 injections are generally safe when administered by qualified professionals

23 Supplementation of 1 mg daily is recommended for patients with specific risk factors (e.g., bariatric/gastric surgery patients, those with severe malnutrition, chronic alcohol use, chronic hemolytic anemia and conditions with high cell turnover, and use of antimetabolite medications such as methotrexate)