are b12 injections better than supplements vs Oral Supplements: Which more effective? Vitamin B12 Injections vs. Supplements:

Patients with existing diabetes or kidney disease can have more adverse effects like further reducing the kidney function

Precautions and Warnings Before administering Vitamin B Complex with Vitamin B12 Injection , healthcare professionals should evaluate the patients medical history to avoid potential complications

Mothers who also took antiretroviral drugs for HIV infection had vitamin B 12 milk levels similar to control.[49] Based on these reported milk levels, an exclusively breastfed infant would receive an extra 0.016 mcg/kg daily of vitamin B 12 from the daily maternal supplemental 2.6 mcg

Store the injection below 30C as advised on the label, and keep it away from heat, sunlight, and children