<prompt> In patient of hypeension, metoprolol and verapamil are given together. This combination can result inAtrial fibrillationBradycardiaTorsades de pointesTachycardia  <response>: Beta blocker metoprolol and non-DHP CCBs verapamil block SA node and AV node. Both combined can cause severe bradycardia and AV block. Drugs causing Torsades de pointes include: Quinidine, Procainamide, Cisapride, Astemizole, Terfenadine etc. 