I just switched from ADEKs to SourceCF softgels. I heard that ADEKs were being discontinued, though I don't know where I heard it or how much truth there is in that. I switched when my pharmacy said they didn't have them in stock and didn't know when they'd be getting them in (CF Services pharmacy, btw). My advice would be to get a prescription for the SourceCF vitamins, which by the way, my insurance paid for (whereas I had to pay out of pocket for the ADEKs).