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

PMID: 29155147

Key takeaways You cant directly equate B12 pills to B12 shots because your body absorbs them differently

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

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It may possibly accelerate stomach ulcer healing and reduce intestinal permeability ("leaky gut")