Hormone replacement therapy (HRT), also known as menopausal hormone therapy or postmenopausal hormone therapy, is a form of hormone therapy used to treat symptoms of the female perimenopause and menopause. Estrogens and progesterones are the main drugs used. Evidence shows that there are health benefits but there can also be side effects.
The types of hormone replacement therapy are combination therapy (estrogen and progestogen), estrogen-alone therapy, and progestogen-alone therapy. Combination Therapy uses doses of estrogen and progestin or progesterone. This therapy comes in pills or skin patches.
More serious side effects are blood clots and breast cancer.