vitamin b12 injection instructions How To Give B Injections (HD) Vitamin C and B12 Injection

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: pulmonary edema peripheral vascular thrombosis, which involves blood clots polycythemia vera, which is a type of blood cancer If anyone experiences difficulty breathing, hives, and swelling, they need emergency medical help

When used appropriately under medical supervision, B12 injections are generally considered very safe

Long-term metformin or proton pump inhibitor (PPI) users These medications can interfere with B12 absorption over time

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