Hypersensitivity. Serious & anaphylactic reactions after 1st or subsequent doses. Discontinue at 1st sign of skin rash, jaundice or any sign of hypersensitivity. Hepatotoxicity. Discontinue immediately if signs & symptoms of hepatitis occur.
Clostridium difficile-associated diarrhea. Evaluate if colitis occurs. QT prolongation; prolongation of QT interval & isolated cases of torsade de pointes. Avoid use in patients w/ known prolongation, w/ hypokalemia, & w/ other drugs that prolong QT interval. Increased risk of aortic aneurysm & dissection, particularly in elderly. Reserve use only when there are no alternative antibacterial treatments available in patients w/ known aortic aneurysm or who are at greater risk for aortic aneurysms. Avoid use during pregnancy. Not to be used during lactation.