I don't believe that that was one that was pointed out as causing complications. But in all cases his doctor has to be the determiner of what is appropriate and what is not. The rule is if the doc signs off on it, why not take as many supportive things as you wish, they clearly know more about these interactions than any of us. I would want to know from the doctors that a B-12 deficiency was an expected treatment complication prior to supplementation, prior to assuming that it would do any good or not.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.