Quinidine/Class I anti-arrhythmics should bear boxed warning on increased risk of death -- HRG petition.

QUINIDINE/CLASS I ANTI-ARRHYTHMICS BOXED WARNING ON INCREASED DEATH RISK in patients with non-life-threatening cardiac arrhythmias is urged by Public Citizen's Health Research Group in an Aug. 10 petition to FDA. The citizen petition calls for FDA to "immediately add warning labels on quinidine and strengthen the warning on other Class I anti-arrhythmic drugs" and "inform all U.S. physicians, pharmacists and other health professionals via FDA Medical Bulletin about these new restrictions and warnings."