Menest is a prescription medication for women. This medication is actually a mixture of several estrogens which are all female hormones. The basic function of estrogen is to help maintain sexual characteristics such as shaping of the body contours and development of sexual organs. It also helps increase secretions from the cervix. Sometimes the female body produces less estrogen, resulting in certain conditions such as hot flashes and vaginal dryness. Restoring estrogen will reduce these symptoms.