TY - CHAP M1 - Book, Section TI - Chapter 6. Sympathomimetics and Sympatholytics A1 - Panus, Peter C. A1 - Jobst, Erin E. A1 - Masters, Susan B. A1 - Katzung, Bertram A1 - Tinsley, Suzanne L. A1 - Trevor, Anthony J. PY - 2009 T2 - Pharmacology for the Physical Therapist AB - Receptors of the sympathetic system may be divided into alpha (α), beta (β), and dopamine (D) receptors. Drugs that bind to these receptors and modulate or mimic the function of the sympathetic nervous system may be divided into those which augment the system (sympathomimetics) and those which antagonize the system (sympatholytics). The sympathomimetics constitute a very important group of agonists used for cardiovascular, respiratory, and other conditions. They are readily divided into subgroups on the basis of their spectrum of affinity for α, β, or D receptors. Alternatively, sympathomimetics may be divided into subgroups based on whether their mode of action is direct or indirect. Sympatholytics are an important group of antagonists used in cardiovascular and other conditions. These drugs are divided into primary subgroups on the basis of their receptor (α and β) selectivity. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessphysiotherapy.mhmedical.com/content.aspx?aid=6090666 ER -