Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Graphs show the effects of drugs with documented TdP risk on the commonly used surrogate marker for TdP risk (QTcB, % change from baseline; in blue) and on the E-M window (ms; in red). Quinidine, haloperidol, domperidone, terfenadine and thioridazine prolonged the QTcB interval and consistently decreased the E-M window. Graphs show mean ± SEM.
