@midnightwalker my husband went the lequembe route based on the neurologists' input and findings. as for the other infusion being 6 months or so, what you described in your post, I'd check that out. I don't remember either infusions FDA approved being 6 months. I know my husband is in the 19th lequembe infusion - 36 in total. I also know that after that, they go on maintenance once a month, but I have read, that based on how well it's received, some haven't gone into that year 2 treatment. I'm going to check that out with his doctor. Best, Karla