I take 2 caps and one aspirin 3 times a day. It helped me drop 34lbs in 3 1/2 months I'm tyring two week cycling with clen this time around to see how that works. Haven't started the xenadrine yet I still have couple days left on the clen. I know one thing for certain, the clen is making me feel like I have a constant pump. I'm running it with 600mgT-Enan & 600mg EQ per week.