Tell your doctor if you are allergic to sulfasalazine, as you may also be allergic to Lialda or drugs that contain or are converted to mesalamine. Some patients taking Lialda or mesalamine-containing products have reported heart-related allergic reactions, such as inflammation of the heart muscle and inflammation of the lining of the heart. Tell your doctor if you have or have had a history of myocarditis or pericarditis as this may increase your likelihood of having these types of reactions.Reports of liver failure have been associated with mesalamine-containing products like Lialda in patients that have or have had liver disease. Tell your doctor if you have a problem with your liver. Tell your doctor if you have a stomach blockage, as this may delay the release of medication. In clinical trials, common side effects reported with Lialda included ulcerative colitis, headache, gas, abnormal liver function test results, and stomach ache. Inflammation of the pancreas was reported which led to discontinuation of Lialda therapy. Other side effects may occur. Before starting Lialda, tell your doctor about all medications you are taking. Mesalamine may increase the risk of kidney problems when used with non-steroidal anti-inflammatory drugs (NSAIDs) (eg, ibuprofen, naproxen). Mesalamine may increase the risk of blood disorders when used with azathioprine and 6-mercaptopurine. Please see Full Prescribing Information. References 1. DoF corresponding to PREVENT2 topline data presentation. 2. Lialda (mesalamine delayed release tablets) Prescribing Information. Wayne, PA: Shire US, Inc; 2011. 3. Mezavant XL, 1200mg, gastro-resistant, prolonged release tablets. Summary of Product Characteristics. Shire Pharmaceuticals Limited, 2010. Notes to editors SHIRE PLC Shire's strategic goal is to become the leading specialty biopharmaceutical company that focuses on meeting the needs of the specialist physician. Shire focuses its business on attention deficit hyperactivity disorder, human genetic therapies, gastrointestinal diseases and regenerative medicine as well as opportunities in other therapeutic areas to the extent they arise through acquisitions. Shire's in-licensing, merger and acquisition efforts are focused on products in specialist markets with strong intellectual property protection and global rights. Shire believes that a carefully selected and balanced portfolio of products with strategically aligned and relatively small-scale sales forces will deliver strong results.