Medical Horse Stories

Sometimes medicine isn’t as glamorous as it sounds. Take Premarin, the leading estrogen replacement drug prescribed to about eight million women to prevent the “hot flashes” of menopause or the “dowager’s hump” of osteoporosis in old age. Wyeth-Averst Laboratories has made the drug for 50 years, but the basic ingredient remains a natural estrogen collected from the urine of pregnant mares.