How safe are the commonly prescribed pain medications?

Since we don't exactly know the causes of fibro no one can hand us an instant cure, but traditional medicine directs itself toward alleviating some of the symptoms and restoring some of our ability to function. Most doctors will prescribe something for pain, as well as something to help us to sleep more soundly. Many will also prescribe something for the stress and depression that can come so easily to those who live with chronic pain.