
Although use of the cyclooxygenase (COX)-2 inhibitor celecoxib has demonstrated benefit in preventing premalignant colorectal adenomas, generally the agent should not be recommended for this purpose due to the risk of cardiovascular events, according to 1 recent trial. In a second study of celecoxib use and adenomas, treatment with celecoxib 400 mg/d markedly lowered the incidence of colorectal adenomas within 2 years after the removal of polyps.