Generic Premarin is used for treating certain symptoms of menopause (eg, hot flashes, vaginal dryness or itching). It is used to prevent osteoporosis (weak bones) after menopause in certain patients. It is also used in certain patients to treat low estrogen levels, prostate cancer or breast cancer.
Generic Zestril is used for treating high blood pressure alone or with other medicines. It is also used to manage heart failure or improve survival after a heart attack.