Works soooooo goood! I can't believe I didn't use this years ago! This is a must in every household! If you do not have this, go to the nearest store to buy it! It cures headaches, stomach-aches, any kind of aches, sour stomachs, and of course the popular, hangovers! Everybody wants a cure for that! You just use it the morning after and feel the pain go away in minutes to an hour! Effectiveness The effectiveness works in about a couple minutes. You can feel the headache melt away! Ease of Use Easy to use! Just put the two tablets in a tall glass of water, wait until it dissolves all the way, and start chugging it! Very simple! Immediacy Works in minutes! Very good for hangovers!