The gastroduodenal mucosal damage caused by aspirin and nonsteroidal antiinflammatory drugs is a common clinical problem. We compared two medications designed to diminish mucosal damage: enteric-coated aspirin and salicylsalicylic acid (salsalate). Ten healthy volunteers were randomized to receive either 1.5 g salsalate twice a day or 650 mg enteric-coated aspirin four times a day for six days and were then crossed over to the other drug after a one-week medication-free period. Endoscopic inspection of gastroduodenal mucosa was performed at entry and again after six days of drug therapy for each medicine. Mean serum salicylate concentrations taken before the morning drug dose were 11.2 mg/dl for enteric-coated aspirin and 18.1 mg/dl for salsalate. Only one of 10 subjects receiving salsalate developed mild (grade 1) mucosal damage while six of 10 receiving enteric-coated aspirin developed moderate to severe damage (grade 2-3) (P = 0.01). Symptoms were mild in both groups. We conclude that salsalate causes less gastroduodenal mucosal damage than enteric-coated aspirin.
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