Table 3

Examples of Narrow Therapeutic Index Drugs

Therapeutic ClassExamples
Antiarrhythmic drugsDigoxin, disopyramide, flecainide, procainamide, quinidine
Anticoagulant drugsWarfarin
Antiepileptic drugsCarbamazepine, oxcarbazepine, phenytoin, valproic acid
Antirejection drugsCyclosporine, everolimus (Afinitor), sirolimus (Rapamune), tacrolimus
BronchodilatorsTheophylline
Mood stabilizersLithium
Synthetic hormonesEthinyl estradiol, levothyroxine