I have been using cayenne for quite some time now. I use Dr. Richard Schulze cayenne powder and tincture. It depends on what I'm taking it with. But I always keep both types around.
Take it anyway you can get it down. Dr. Richard Schulze says in his "Incurables Program" which I have used twice now, he says to use it in a 12 ounce glass of your favorite juice. I also use it with his superfood, as he instructs. 1/4 teaspoon with 12 ounces of water and two table spoons of super food. It will make your face and head get rather warm, your skin turn bright red for about an hour, but it's normal, so don't freak out. It's partly the cayenne powder and partly the high niacin and B vitamin content in his super food. But I would not suggest putting the ticture directly on the tongue to start, because it is so hot and could burn your tongue. Unless of course you are having a heart attack or are next to someone having a heart attack, in which case, screw the poor tongue and get that stuff under their tongue to save their life!!! Or put 1 teaspoon in 1 cup of warm water and have them drink it fast. It will protect them from the damaging effects of a heart attack!