Progesterone is added to estrogens in H to achieve wof effects
Hormone replacement therapy (H) In nonhysterectomised postmenopausal women estrogen therapy is supplemented with a progestin for 10-12 days each month to counteract the risk of inducing endometrial carcinoma. Ref:- kd tripathi; pg num:-318
Decrease the estrogen action on the breast
Decrease the occurrence of endometrial cancers
Increase the effectiveness of the estrogens
Inhibit bone resorption
Endocrinology