If you are:
Only When Necessary:
Precaution: INSUFFICIENT DATA AVAILABLE; CAUTION WITH EXCLUSIVELY BREASTFED INFANTS.
An adult over 60:
management or monitoring precaution: Cardiovascular-High serum levels will prolong the QT interval. Renal-Partially cleared by filtration and tubular secretion. Use caution in renal impairment. Follow serum levels.
Giving Quinidex Extentabs tablet, extended release to a child under 12:
management or monitoring precaution: Safety and efficacy of antiarrhythmic use not established.