American College of Cardiology (ACC), American Heart Association (AHA), and the European Society of Cardiology (ESC). ACC/AHA/ESC 2006 Guidelines for the Management of Patients with Atrial Fibrillation. Washington, DC: American College of Cardiology. Medscape - Indication-specific dosing for Cardizem, Cardizem CD (diltiazem), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. ER = extended release formulations. Reference: (1) Task Force for the Management of Atrial Fibrillation of the European Society of Cardiology (ESC). User Reviews for Diltiazem to treat Atrial Fibrillation. Also known as: Cardizem, Cartia XT, Dilt-XR, Matzim LA, Taztia XT, Tiazac. The following information is NOT intended to endorse drugs or recommend therapy. Detailed Diltiazem dosage information for adults. Includes dosages for Hypertension, Congestive Heart Failure, Atrial Fibrillation and more; plus renal, liver and dialysis adjustments. Cardiovascular diseases are the leading cause of death in the world. Coronary artery diseases, atrial fibrillation or hypertensive heart disease, are among the most important cardiovascular disorders. Hypertension represents a significant risk factor for cardiovascular mortality; thus, control of Heart failure (HF) and atrial fibrillation (AF) are two conditions that are likely to dominate the next 50 years of cardiovascular (CV) care. Both are increasingly prevalent and associated with high morbidity, mortality, and healthcare cost. In horses, diltiazem may be effective for atrial fibrillation. However, treated horses had variable results, and some developed hypotension and sinus arrest. Transdermal administration of However, treated horses had variable results, and some developed hypotension and sinus arrest. Written by Thomas Davis. Spoon Feed Among patients with atrial fibrillation with RVR who received an initial IV loading dose, PO diltiazem was associated with better heart rate control at 4 hours compared to IV diltiazem infusion. Reference: Fromm C et al. Diltiazem vs. metoprolol in the management of atrial fibrillation or flutter with rapid ventricular rate in the emergency department.