Menopause clinics across the U.S. are hearing from women who are having trouble filling prescriptions for estrogen patches , a common hormone replacement therapy. “There’s just more demand for these medications, and I think it’s exponentially risen over the last three or four years,” said Dr. Rajita Patil, director of University of California, Los Angeles Health’s Comprehensive Menopause Program. “I don’t think that the supply chain was ready for that.” Hormone replacement therapy prescriptions