Lipitor at one time and maybe still is the most prescribed drug in the USA A few years ago, there was a push to start prescribing the junk for children. Lipitor is a drug called a "statin". It is supposed to reduce the bad cholesterol, LDL. However, the data has been inconclusive as to its effectiveness. When originally invented, the hype was heart attacks were going to be a thing of the past. We still have them, don't we??? Lipitor has been and still is one of the most controversial prescription drug in existence.