List of products in the National Drug Code with proprietary name activella. This medication contains 2 female hormones: an estrogen (such as conjugated estrogen, estradiol) and a progestin (such as medroxyprogesterone, norethindrone, norgestimate). It is used by women to help reduce symptoms of menopause (such as hot flashes, vaginal dryness). These symptoms are caused by the body making less estrogen. The progestin in this medication helps to reduce the risk of cancer of the uterus which can be caused by using estrogen. Women who have had their uterus removed do not need the progestin and therefore should not use this combination medication. If you are using this medication to treat symptoms only in and around the vagina, products applied directly inside the vagina should be considered before medications that are taken by mouth, absorbed through the skin, or injected. This medication may also be used by women after menopause to prevent bone loss (osteoporosis). However, there are other medications (such as raloxifene, bisphosphonates including alendronate) that are also effective in preventing bone loss and may be safer. These medications should be considered for use before estrogen/progestin treatment.