"Women felt betrayed," says Isaac Schiff, MD, chief of obstetrics and gynecology at Massachusetts General Hospital in Boston. "They were calling their doctors, saying, 'How could you put me on this drug which causes heart attacks, strokes, and cancer?'"
If you’ve been on hormone replacement therapy (HRT) for a while to relieve menopause symptoms, you may be wondering, what now? Should you stop taking it? If so, when? And how do you go about it?
If you are healthy, most experts agree that HRT is safe to use at the lowest dose that helps for the shortest time needed. If you're 59 or older, or have been on hormones for 5 years, you should talk to your doctor about quitting.
Almost overnight, standard medical practice changed. Doctors stopped prescribing hormone replacement therapy and 65% of women on HRT quit, according to Schiff.
But some experts say hormone replacement therapy may be coming back. All along HRT remained an important treatment for menopause symptoms like hot flashes. And now, a number of recent studies show that hormone replacement therapy may have protective benefits for women who are early in menopause.
"I think we swung too positive on hormone therapy in the past and then we went too negative," says Schiff, who is also chair of the American College of Obstetricians and Gynecologists Task Force on Hormone Therapy. "Now we're trying to find a balance in between."
Hormone Replacement Therapy: The New Evidence
"We're definitely in a gray zone of uncertainty about hormone therapy," says Jacques Rossouw, MD, project officer for the federal Women's Health Initiative (WHI). "But when you're uncertain, you have to err on the side of safety."
While Rossouw concedes that new studies show some preventative benefit for younger women, he says any potential benefit is very slight. And, he notes, there is no evidence that any benefit would last if women kept taking hormones as they got older.
But increasing numbers of researchers say there should be a place for hormone replacement therapy as a preventive treatment for limited periods as it may help prevent disease in younger women around the age of menopause.
"We have evidence that hormone therapy can prevent heart disease, hip fractures, and osteoporosis, and that it cuts the risk of developing diabetes by 30% in younger women," says Shelley R. Salpeter, MD, a clinical professor of medicine at Stanford University's School of Medicine.