In other words, Progesterone protects against the undesirable side
effects of estrogen listed above.
Not exact matches
A comprehensive
listing of estrogen side
effects can be found via this link.
Analysis
of several studies on the
effect of combined progestin -
estrogen therapy indicates that progestins do appear to improve bone density, but their use is accompanied by a long
list of unacceptable potential side
effects.
Here is a
list of estrogen's
effects on the body, and the complementary
effects of progesterone.