Cardiology>>>>>Arrythmias
Question 10#

Which one of these drugs does not prolong the QT interval?

A) Amiodarone
B) Erythromycin
C) Carbemazpine
D) Clozapine
E) Methadone

Correct Answer is C

Comment:

The other drugs mentioned are all well known to cause QT prolongation and should be avoided in people with long QT syndrome. Sometimes this is difficult and a risk–benefit decision needs to be made. A full list of drugs known to cause QT prolongation can be found at http://QTdrugs.org.