Dear Friend,

Few women know that in the mid-1900s, Dr. Katharina Dalton, coined the term "premenstrual syndrome" (PMS) and was the first to establish the connection between hormonal changes and the physical and mental changes women experience cyclically and throughout life.

A chiropodist and mother, Dr. Dalton returned to medical school after her husband was killed in World War II. She began publishing pioneering studies about PMS, developed the systematic use of menstrual charts for the diagnosis of PMS, and was the first to use progesterone to treat it. In addition to publishing a steady stream of research papers, she was the author of several internationally best-selling books and,from 1957, ran the PMS clinic at London's University College Hospital, the first of its kind in the world. She also believed progesterone might be useful in treating postnatal depression and encouraged studying it for this use.

Dr. Dalton's controversial work and pioneering spirit strongly influenced Marla Ahlgrimm, R.Ph.,founder of Women's Health America and Madison Pharmacy Associates, the first in the United States to treat PMS with progesterone therapy.

We acknowledge and honor Dr. Dalton, who passed away in Poole, Dorset, at the age of 87 on Friday, September 17, 2004. We are grateful for her lifetime of pioneering work that changed the lives of women around the world for the better and are proud to continue the work she began.

We invite you to visit our webpages for PMS and progesterone therapy, and contact us at 800-558-7046 with any questions you might have.