how does a vitamin b12 injection work to Give Injections at Home to Yourself · PA Relief Best Vitamin B12 Injection Sites:

Any excess B12 is eliminated by the kidneys

Landis J, Shaw LM

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

Overnight dehydration combined with fasting can contribute to orthostatic effects

If you have any further questions or concerns, reach out to your healthcare provider for expert advice