Excedrin Extra Strength Back & Body Pain Reliever is actually one of the best over-the-counter pain relievers. It has a little boost of caffeine in it so it's not something to take right before going to bed. I have read other reviews that complained about the caffeine in this product and don't understand why. If you read the ingredients, and don't like to take caffeine, don't buy this OTC medicine. However, there are actually positive aspects to caffeine. The fact it can actually boost pain pills ability to relieve pain, and relieve it faster is why I take it. However, because it has about as much caffeine as a cup of coffee, this medicine is not good for people that are sensitive to caffeine. I don't think it's a good medication for my back pain because it has never relieved it even minimally. It does relieve my cluster headaches and tension headaches faster and better than any other OTC medication out there. If regular OTC medication has stopped working for you, I highly recommend Excedrin Back & Body. It's the best use caffeine has been put to!