TY - CHAP M1 - Book, Section TI - Poisoning by β-Blocker and Calcium Channel Blocker Agents A1 - Williams, Saralyn R. A1 - Thurman, R. Jason A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason Y1 - 2021 N1 - T2 - The Atlas of Emergency Medicine, 5e AB - β-Blockers and calcium channel blockers have various clinical indications, including the management of hypertension, myocardial infarction, and cardiac dysrhythmias, as well as the treatment of noncardiovascular conditions (eg, glaucoma, thyrotoxicosis, migraine headache prophylaxis). β-Blocking agents may be selective for B1-adrenergic receptors or nonselective. With therapeutic use, the commonly available calcium channel blockers are selective for the membrane-bound L-type calcium channel. Inhibition of this channel prevents influx of extracellular calcium. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/10/10 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181056801 ER -