Answer
It can prolong the QT interval and has been associated with arrhythmias. Risk is higher with certain heart conditions, electrolyte abnormalities or interacting medicines.
Sources for this answer
- WelldormTablets/Cloral Betaine 707mg Tablets — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.