This statement is inaccurate. Methylcobalamin is the active form, and Hydroxocobalamin is an intermediate form, and needs to be activated in the body to either of the two active forms, methylcobalamin and adenosylcobalamin. Methylcobalamin, adenosylcobalamin and hydroxocobalamin are all available orally without a prescription.(cyanocobalamin is synthetic and is also available orally without a prescription.)

http://en.wikipedia.org/wiki/Hydroxocobalamin


Posters here have a responsibility to post accurate information to others when the post is scientific in nature and not just an "opinion".
You may post a link to illustrate your comments, and I suggest, that you, neuroproblem, do that in the future to avoid confusing people here. It appears to me that you may have some cognitive problems too, that need addressing by an appropriate doctor, along with your other health issues.

B12 chemistry is complex and difficult to understand. So I strongly suggest you post links to support any factual comments you make here about it, or other medical subjects. Our guidelines do not allow for long quotes from other sources. You may quote a short example passage, and follow with the appropriate link. Otherwise we have to edit for copyright compliance.

This is a link to our guidelines:
http://neurotalk.psychcentral.com/thread1293.html

And this is a link to how to post copyrighted information.
http://neurotalk.psychcentral.com/thread37384.html
When you visit a page scroll down to the details at the bottom, or click on their privacy areas if available, and read their copyright rules. Some places like Medscape do not allow even a short quote. So for those I just give a link.