Well, I have been using cayenne (really high BTU like 90,000 or 100,000) in capsules. According to the person that wrote the above account capsules don't work, but I know they do work at least a little. ;)
But to get the most dynamic effects people mix the cayenne in water or juice and drink it down. I have heard that though it is hard at first once gets used to it. I really should start doing that!