Vitamin B-12 deficiency

I concede that oral treatment might be agood idea for several
reasons. But I wonder if anyone has noticed that in order to institute oral
replacement dose of 1 mg OD the patient will have to take 20 tablets of
cyanocobalamin 50 micrograms a day.

The only oral preparation I can find in the BNF in the UK for Vit B12 is
the cyanocobalamin 50 micrograms tablet.

Taking 20 tablets a day (if they are not taking that many already in other
medicines!) won't be welcomed by many patients I know. Would there be any
other alternatives?

Competing interests:
I get paid for Vitamin B12 injections