We wish to inform you of changes made to the QTdrugs list.
New evidence for memantine and benperidol (including a thorough QT study, review of case reports, and drug label changes) does not indicate that memantine or benperidol are associated with QT prolongation under normal conditions of use. Therefore these two drugs have been removed from the Possible Risk of Torsades de pointes (TdP) category. Also, diltiazem has been added to the Conditional Risk of TdP category. The specific conditions for this risk are: hypokalemia, bradycardia or concomitant use with drugs known to cause TdP.
Thank you for your interest and continued support of CredibleMeds.
- AZCERT Scientific Review Committee