Conditions such as pernicious anemia, which affects the absorption of B12, may also warrant coverage, as well as certain chemotherapy treatments that necessitate B12 supplementation
Many patients report that after about 4 weeks of weekly injections, they observe improvements such as more steady energy levels and easier weight loss progress
Patients should avoid ingesting large amounts of vitamin C within 1 hour of oral vitamin B12 administration Extended release potassium products Antibiotics such as gentamicin, neomycin, tobramycin Anti-seizure medications such as phenobarbital, phenytoin, primidone Medicines used to treat heartburn like H2 blockers such as cimetidine and proton pump inhibitors such as omeprazole Antacids such as ranitidine, cimetidine Vitamin B12 Injection Storage and Safety Information Vitamin B12 tablets should be in a cool and dry place
Subcutaneous injections are injected into the layers between the skin and muscles using a short 1/2 needle which makes it almost completely painless when properly done
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According to Healthline , vitamin B12 injections are considered generally safe, but some do have allergic reactions or sensitivity