does b12 injections cause joint pain Why do I feel worse after a injection? B12 Shots in Friso, Sherman,

For individuals allergic to hydroxocobalamin, other alternative forms may be suitable, such as cyanocobalamin, methylcobalamin, adenosylcobalamin (also known as dibencozide), as well as oral vitamin B12 supplements which are available in various formulations like capsules

No side effects

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Pharmacotherapy, 42(9), 659-667

There are specific blood tests (called serologic testing on paired serum samples) that can be used to look for an increase in antibodies to these URI viruses, but this is rarely done due to cost and limited practicality (1,2)

I take note that these tests was done a few days after my injection