“…The potential side effects related to mesalazine use, and their frequency, were analysed using review, studies and clinical cases. Their table 4 shows that cardiac adverse events are reported with a frequency of 0%‐0,3%, including cardiomyopathy, myocardial infarction, atrio‐ventricular block and ventricular dysfunction, but no mention is made about sinus bradycardia, a side effect which can rarely occur during mesalazine use and that has been described only by four clinical cases in the literature . In three of four cases, the patients were young women who had developed symptoms early after starting mesalazine treatment.…”