I've never heard of red kat either, but checked it out on a couple of web sites. A few years back there was some feeling that Creatine might be helpful. I believe that the double blind tests were not conclusive. I expect that there are still quite a few people on it. As well, there was a guy in Australia using massive dosses of vitamin E (mixed tocopheryls).
Red Kat sounds like something I might try... in Amsterdam!