Tag: QT prolongation

Dofetilide and Cimetidine: Why This Drug Pair Can Trigger Deadly Heart Rhythms
17
Jan
Dofetilide and Cimetidine: Why This Drug Pair Can Trigger Deadly Heart Rhythms
Medications 14 Comments

Dofetilide and cimetidine together can cause life-threatening heart rhythms. This interaction increases QT prolongation risk by up to 4 times, leading to torsades de pointes. Learn why this combo is strictly contraindicated and what to use instead.

QT Prolongation with Fluoroquinolones and Macrolides: Monitoring Strategies
14
Jan
QT Prolongation with Fluoroquinolones and Macrolides: Monitoring Strategies
Medications 12 Comments

Fluoroquinolones and macrolides can cause dangerous QT prolongation, leading to life-threatening arrhythmias. Learn how to monitor ECGs, recognize high-risk patients, and choose safer alternatives to prevent cardiac events.

Antipsychotics and Cardiac Medications: Understanding QT Prolongation Risks
16
Nov
Antipsychotics and Cardiac Medications: Understanding QT Prolongation Risks
Health 15 Comments

Antipsychotics can prolong the QT interval, raising the risk of dangerous heart rhythms. Learn which drugs carry the highest risk, how to monitor for QT prolongation, and how to balance mental health benefits with cardiac safety.