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42 下列何藥在老人的療效會降低?
(A) Isoproterenol
(B) Levodopa
(C) Pentazocine
(D) Metoclopramide


答案:A
難度: 非常困難
1F
Bryan 國三上 (2014/03/18)
Isoprenaline (INN) or isoproterenol (USAN, trade names Medihaler-Iso and Isuprel) is a medication used for the treatment of bradycardia (slow heart rate), heart block, and rarely for asthma.
Produces bronchodilation by relaxing bronchial smooth muscle through beta-2 receptor stimulation; increases heart rate and myocardial contractility by stimulating cardiac beta-1 receptors, which increases cardiac output.
2F
Bryan 國三上 (2014/03/18)
Elderly

Lower doses may be required?

3F
Tiraxcept 大一上 (2019/05/04)

(A)Isoproterenol :β1、β2 直接 agonist,α、β的agonist與antagonist皆有證據顯示會隨年齡降低療效
(B)Levodopa :代謝成dopamine後直接作用於dopamine受體
(C)Pentazocine :鴉片類混和型致效劑μ-antagonist、κ-agonist
(D)Metoclopramide :5-HT4 agonist,D2-antagonist,促進腸胃蠕動,治療胃輕癱、消化不良、止吐,有EPS副作用

β腎上腺受體療效降低相關文獻:Vestal, Robert E., Alastair JJ Wood, and David G. Shand. "Reduced β‐adrenoceptor sensitivity in the elderly." Clinical Pharmacology & Therapeutics 26.2 (1979): 181-186.

42 下列何藥在老人的療效會降低? (A)Isoproterenol (B..-阿摩線上測驗