US$ 23.68
injection vitamin b12 methylcobalamin Buy Injections Online – 1500mcg & 2500mcg Methylcobalamin Injection - Liquid Form,
Description
Intranasal cyanocobalamin therapy is not ideal for patients with chronic nasal symptoms or significant nasal pathology

The most common side effect is some soreness at the injection site, and you might notice your urine turning bright yellow (thats just the excess vitamins, particularly riboflavin, being excreted)

They bind to different receptors

The good news is there is very little risk of a bad outcome
