However, post-menopausal women need 1,000-1, 500mg daily to help avoid osteoporosis, as explained further on page 113.
For reasons that no one understands, this mostly affects post-menopausal women.
This value is used in post-menopausal women and men over age 50 because it better predicts risk of future fracture.
It will initially only be available on prescription for post-menopausal women with diagnosed sexual problems.
It is, after all, most common in post-menopausal women.
They also occur in a small number of post-menopausal women.
And the difference increases with age; taking all post-menopausal women, it is twentyfold.
The findings come from analyses on 948,576 post-menopausal women in the study, followed up for about 5 years.
But experts said the findings did not mean that post-menopausal women should stop taking estrogen.