b12 levels too high after injection Adverse reactions to vitamin injections due... : Allergy How Long Do B12 Injections

[15] In practice, hydroxocobalamin injections achieve higher and more sustained vitamin B concentrations compared to cyanocobalamin

How long a B12 shot lasts depends on the form of B12 used in the injection, how severe your deficiency is, and how well your body absorbs the form thats being injected

IV therapy bypasses your stomach entirely, ensuring you get the full benefit even when your digestive system has completely shut down

For example, the antibiotic chloramphenicol can interfere with the effects of vitamin B, reducing the expected hematologic response to B therapy

By joint location: The only human trial was knee-specific