There has been some talk about B12 resistance, so I am writing to give my two cents regarding the form of B12 I use. I had my physician write a Rx for hydroxocobalamin 30 ml vial made by Actavis Pharma, Portugal. This is a bacteriostatic 30 does (1ml = 1,000 mcg b12) vial designed for multiple withdrawals. Always follow aseptic technique. In the U.S. this cost me approximately $20 (I have private insurance). I believe this form to be better utilized by the body over the cyanocobalamin form. The methylcobalamin form is ideal, but it isn't stable for any extended period after it was been reconstitute from powder.
Best Form of B12 for Injection - Pernicious Anaemi...
Pernicious Anaemia Society
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