<p>Patients with pyloric stenosis may have prolonged gastric retention of Mesalamine tablets which could delay release of Mesalamine in the colon. Renal impairment, including minimal change nephropathy and acute and chronic interstitial nephritis has been reported in patients taking Mesalamine. Therefore, caution should be exercised when using Mesalamine in patients with known renal dysfunction or history of renal disease. Patients should have renal function monitored, prior to treatment start and then it should be monitored periodically during treatment. There have been reports of hepatic failure in patients with pre-existing liver disease who have been administered Mesalamine. Caution should be exercised when administering Mesalamine to patients with liver impairment.</p>