Generic Celebrex is used for treating rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, juvenile arthritis or menstrual pain. It is also used in familial adenomatous polyposis (FAP) to decrease the number of polyps (growths) in the rectal area.
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.