vitamin b complex with b12 injection Compounded Methylcobalamin (Vitamin B12) Injection, 5mg/mL Readily available source of B vitamins Brand: Polybcom Vitamin B Complex

Cyanocobalamin: Usage Patterns and Considerations Cyanocobalamin is a common vitamin B12 injection

Tablets just as effective Over-the-counter B12 tablets are a fraction of the cost of shots, and have been shown in a British-Canadian study to work just as well for most people, although some people with digestive conditions may have difficulty absorbing the vitamin in tablet form

PMID 6112240

Certain groups are more at risk of B12 deficiency, including individuals over the age of 50 and those following a vegan or vegetarian diet

The honest summary: strong mechanistic and animal evidence, essentially no completed human efficacy trials

Addressing dental problems early can prevent the spread of infection and more severe complications