what are the negatives of b12 injections How Can Vitamin Shots Help Me Feel Refreshed Vitamin B12 Injections vs. Supplements:

The FDA's 2024 review weighed against adding the reviewed AOD-9604 substances to the 503A Bulks List

But there are eight B vitamins, and they play different roles

Although extremely rare, hydroxocobalamin injections can also cause serious side effects such as a major allergic reaction or irregular heartbeats (palpitations)

And without enough oxygen in your cells, youll feel tired no matter how long you sleep

Side effects of B12 deficiency can include decreased cognitive function, fatigue, lethargy, feeling faint, depression or irritability, headache, balance issues and more

Vegetarians and vegans who lack dietary sources of B12