Asacol delayed-release tablets were the first oral preparation approved on January 31, 1992. Brand names for mesalamine include Lialda, Pentasa, Apriso, and Delzicol. Asacol™ (mesalazine) is a medicine for the treatment of the inflamed lining of the large bowel (colonic and rectal mucosa). Asacol HD (mesalamine) is a prescription medication approved to treat ulcerative colitis in adults. Learn about dosage, side effects, cost, and more. Mesalazine is sold under various names including Apriso, Asacol, Asacol HD, Canasa, Delzicol, Fivasa, Lialda, Salofalk, Pentasa, Rowasa, Octasa, and Sfrowasa. In Europe, it is sold under the name Salofalk (rectal suppository). [27][28] Asacol is an aminosalicylate, and symptoms of salicylate toxicity include nausea, vomiting and abdominal pain, tachypnea, hyperpnea, tinnitus, and neurologic symptoms (headache, dizziness. Asacol (Mesalamine Delayed-Release Tablets) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Asacol tablets are coated with an acrylic-based resin that delays release of mesalamine until it reaches the terminal ileum and beyond. This has been demonstrated in human studies conducted with radiological and serum markers. Mesalamine is used to treat and prevent flare-ups of mild to moderately active ulcerative colitis (an inflammatory bowel disease). It works inside the bowels to reduce inflammation and other symptoms of the disease. This medicine is available only with your doctor's prescription. This product is available in the following dosage forms: See full prescribing information for Asacol HD. • Asacol HD is a locally acting aminosalicylate indicated for the treatment of moderately active ulcerative colitis. Safety and effectiveness of. Asacol HD delayed-release 800mg tablets are used to treat moderately active ulcerative colitis in adults. Stop using Asacol HD and call your doctor at once if you have severe stomach pain, stomach cramping, bloody diarrhea (may occur with fever, headache, and skin rash).