the antiarrhythmic effects of procainamide and phenytoin were studied in 81 patients admitted to the coronary care unit at the university hospital in linkoping because of a suspected or proven diagnosis of acute myocardial infarction , and who developed ventricular arrhyhmias , requiring treatment , during the first 8 hours in hospital .
C0003195
antiarrhythmic
C0033216
procainamide