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site for b12 injection How to Give a Injection: Step-By-Step Instructions How to Give Yourself a
Description
Vitamin B12 can be found naturally in animal products such as meats, fish, poultry, eggs, and dairy

Cobalamin deficiencies in adults: update of etiologies, clinical manifestations and treatment

Although generally safe, injections should be used with caution in people with a history of allergic reactions to cobalamin or in people with Leber's disease (hereditary optic neuropathy), as B12 may worsen the condition

The day after dose 1, I had chills and a day of diarrhea, then a day of nausea and all seemed resolved
