Mesalamine is a medication primarily used to treat inflammatory bowel diseases, such as ulcerative colitis and Crohn's disease. It works by reducing inflammation in the lining of the intestines, helping to alleviate symptoms like abdominal pain and diarrhea. This drug is available in various forms, including tablets, capsules, and rectal suppositories. Patients typically take Mesalamine as part of a long-term treatment plan, and it may take several weeks to notice improvements in their condition. Regular follow-up with a healthcare provider is essential to monitor effectiveness and any potential side effects.