RT Journal Article SR Electronic T1 Ventricular Arrhythmias, Part III: Benefits And Risks Of Antiarrhythmic Therapy JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 255 OP 266 DO 10.3122/jabfm.1.4.255 VO 1 IS 4 A1 Grauer, Ken A1 Gums, John YR 1988 UL http://www.jabfm.org/content/1/4/255.abstract AB In Parts I and II of this series, clinical significance, prevalence, and special concerns in the evaluation of patients with ventricular arrhythmias were reviewed. We now examine the categories of antiarrhythmic drugs and offer indications for their use. Reasons why a patient may not respond to antiarrhythmic therapy, end points of therapy, and the benefits and drawbacks of measuring serum drug levels are addressed. Use of newer drugs and additional treatment modalities are discussed in the final installment.