MK-B-251 ANTIARRHYTHMIC
Transcript of MK-B-251 ANTIARRHYTHMIC
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MK-B-251 ANTIARRHYTHMIC
Alternative to lignocaine for some?MK-B-251 (MK· 251; Merck, Sharp and Dohme) is anantiarrhythmic drug, an isothionate salt ofan amine. In 14patients with ischaemic heart disease and chronic prematureventricular contractions (PVCs), MK-B-251. 300mg/day for 4days, significantly reduced the frequencyofPVCs in 10 of thepatients: 5 reduced frequency by 85-100 %, 4 by 25-55 % and1 by 10%. Four-failed to respond. Two patients who wereresistant to lignocaine (lidocaine) responded minimally to MKB-251 while 1 patient who responded minimally to lignocaineproduced-a >85 % response to MK-B-251. No side effectswere observed.Aberg. A. et al.:Current Therapeutic Research 27: 7 (Jan 1980)
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