Pharmacology – MCQ 126 – QT interval in premature infants
Drug implicated for prolonging QT interval in a premature baby is :
A. Domperidone
B. Metoclopramide
C. Cisapride
D. Omeprazole
Correct answer : C. Cisapride
Cisapride can cause QT prolongation when administered along with drugs like ketoconazole which inhibit hepatic cytochrome p-450 CYP 3A4 enzyme.