A lot of people use way too much and get into trouble. Less is more. Like any herb, with a bit of discipline and caution, it can be a useful herb. I had a classical migraine yesterday but quickly took some Picamillon, K@, and another popular herb that helps with nausea, my head still hurt but I didn't care that it hurt at that point. Today, I feel like I have a mild hangover, no sudden movements or my head starts throbbing, but it wasn't the horrible ordeal that migraines used to be. I find that K@ is more useful for rheumatoid arthritis pain than kava, but you want to use just enough to do the trick, limit to once or twice a day, alternate with stem and vein powder, and take a break when your tolerance starts increasing.