Just thought I would tell everyone here about my latest experience with B12 Methylcobalamin sublingual tablets. I have started taking one or two tablets a day at 5 mg per tablet. It seems to be successful at replacing the 25,000 mcg B12 cyanocobalamin injections I was taking once every two weeks. (It's a little confusing, one is sold in 1,000s of mcg and the other in mg's, but 1 mg = 1000 mcg since mc is micro and m is for milli). I get the Methylcobalamin from this web site's sponsors as Neuro B12. I think it is the greatest thing since ice cream actually. Compared to getting injections it is very close to ice cream. Basically, this proves that, at least in my case, the sublingual tablets are roughly equivalent to the injections, possibly requiring up to double the dosage to remain equivalent. The 1 mg cyanocobalamin tablets are not as effective for possibly the reason that it would take too long to get the required effective dose.