It seems like there is a scare about one or another medication causing problems every month. Fenfluramine (Fenphen), Vioxx, Seldane, ephedrine, over the counter diet supplements and now some of the medications that we use for Parkinson’s disease are being blamed for causing an increase in heart disease.

Female hormone supplements that were given for relief of menopausal symptoms are being blamed for an increase in breast cancer. Medications that we use to prevent or treat osteoporosis in a...