I just wanted everyone to know that I found out who makes the K25 37.5's IT is a company called KVK Tech in Newtown, Pens. My doctor did not know who made them so I researched the FDA site and found this company. They were just approved to mfg them in the last 6 months or so, so that is why no one has seen them before. I emailed the company, and they promptly emailed me back saying that it was their product. So.....I feel much better now, knowing that they are made here and not in some far off land with heck knows what for fillers!! Thanks to everyone for all the support!! You guys are the best!