"Darvocet has been helping me with back and fibromyalgia pain for many years. I take it sparingly and only when absolutely necessary. It has minimal side effects and since I take it only at bedtime, I do not have drowsiness in the morning. I sleep well and have lessened pain for about 2 - 3 hrs in the morning. I am lost without this help. My md gave me ultram which does not help and causes dizziness in the morning. Everyone is different."