61 下列藥物中何者具有5-HT 4 的作用,但由於它的毒性,故臨床上使用受到限制?
(A) Amphetamine
(B) Cisapride
(C) Dexfenfluramine
(D) Lysergic acid
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統計: A(36), B(437), C(75), D(94), E(0) #413356
統計: A(36), B(437), C(75), D(94), E(0) #413356
詳解 (共 5 筆)
#892543
32 糖尿病患者若出現腸胃蠕動減緩甚至產生便秘症狀,醫師常會建議病人使用下列何種藥物,而該藥物是選擇性興奮5-HT 4 receptors 來增加腸胃道的蠕動?
(A)Fenfluramine
(B)Ranitidine
(C)Cisapride
(D)Ketanserin
專技高考◆藥師◆藥理學與藥物化學- 093-1-藥師-藥理學#10737
答案:C
14
2
#3042375
cisapride可能造成心臟Q-T波延長 (QT prolongation) 的副作用,以及與其他藥物間的交互作用而限制了cisapride的臨床應用。
現在多以metoclopramide取代 metoclopramide有多一個D2拮抗
11
1
#3482915
Cisapride可以藉由增加Ach游離,增加腸胃蠕動
6
0
#892541
Cisapride is a gastroprokinetic agent, a drug that increases motility in the upper gastrointestinal tract. It acts directly as a serotonin 5-HT4 receptor agonist and indirectly as a parasympathomimetic. Stimulation of the serotonin receptors increases acetylcholine release in the enteric nervous system. It has been sold under the trade names Prepulsid and Propulsid. It was discovered by Janssen Pharmaceutica in 1980. In many countries, it has been either withdrawn from the market or had its indications limited because of side-effects.
5
2