Salford is a trade name, and the generic name of the drug is Mesalazine enteric-coated tablets. The drug acts locally on the intestinal mucosa and submucosal tissues, which can scavenge reactive oxygen radicals, inhibit lipoxygenase and play an anti-inflammatory role. The drug is used in the treatment of acute exacerbations of ulcerative colitis and maintenance treatment to prevent recurrence; it is also used in the treatment of acute exacerbations of Crohn’s disease. Use of the drug may cause adverse reactions such as headache, dizziness, abdominal pain, diarrhea, flatulence, nausea and vomiting. The drug is contraindicated in cases of liver and kidney dysfunction, gastroduodenal ulcers, bleeding tendencies and hypersensitivity to the drug. When using the drug, it is necessary to note that before and during the treatment it is necessary to check the blood and urine status. It is recommended to start checking from the 14th day after treatment, and thereafter to further recheck 2-3 times at intervals of 4 weeks. If the results of the tests are normal, they are routinely checked every 3 months. The drug needs to be used under the supervision of a doctor.