how much b12 do i inject Injection Dosage and Frequency: 7 Guidelines for Adults Compounded Cyanocobalamin (Vitamin B12) Injection

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There is After having a B12 shot, a person should monitor for adverse symptoms and seek medical help if they experience: severe pain at the injection site mild diarrhea a swelling sensation in the body temporary itching of the skin In rare cases, a person may also be at risk of: anaphylaxis pulmonary edema congestive heart failure peripheral vascular thrombosis, which involves blood clots polycythemia vera, which is a type of blood cancer If anyone experiences difficulty breathing, hives, or swelling, they need emergency medical help

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1 2 European Journal of Organic Chemistry

This happens when you dont have enough vitamin B12 to support your optic nerve, and damage to the nerve occurs as a result