Prifuroline
(Synonyms: 普呋罗林) 目录号 : GC32584Prifuroline是一种抗心律失常药物。
Cas No.:70833-07-7
Sample solution is provided at 25 µL, 10mM.
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Prifuroline is an antiarrhythmic agent.
Prifuroline is an antiarrhythmic agent. Prifuroline dose-dependently antagonizes the arrhythmogenic action of aconitine in rats, when administered either intravenously (5, 10 or 20 mg/kg) or intraduodenally (10, 20 or 50 mg/kg). Prifuroline also diminishes ventricular susceptibility to electrical stimulation in open-chest rats. The arrhythmias induced in dogs by coronary artery ligation are markedly antagonized by Prifuroline after doses of 5 and 10 mg/kg i.v. or 30 mg/kg intraduodenally. The duration of its antiarrhythmic activity in this model of arrhythmias in conscious dogs is much longer after intraduodenal than after i.v. administration[1].
[1]. Benharkate M, et al. Antiarrhythmic and hemodynamic effects of prifuroline. Arzneimittelforschung. 1986 Dec;36(12):1761-7.
Cas No. | 70833-07-7 | SDF | |
别名 | 普呋罗林 | ||
Canonical SMILES | CN(C)C1=NCC(C2=CC3=CC=CC=C3O2)C1 | ||
分子式 | C14H16N2O | 分子量 | 228.29 |
溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 4.3804 mL | 21.902 mL | 43.8039 mL |
5 mM | 0.8761 mL | 4.3804 mL | 8.7608 mL |
10 mM | 0.438 mL | 2.1902 mL | 4.3804 mL |
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给药剂量 | mg/kg | 动物平均体重 | g | 每只动物给药体积 | ul | 动物数量 | 只 | |||
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2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
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Antiarrhythmic and hemodynamic effects of Prifuroline
Arzneimittelforschung 1986 Dec;36(12):1761-7.PMID:3566836doi
The antiarrhythmic activity of 4-(2-benzofuranyl)-2-(dimethylamino)-1-pyrroline (Prifuroline) has been evaluated in rats, guinea-pigs and dogs. Prifuroline dose-dependently antagonizes the arrhythmogenic action of aconitine in rats, when administered either intravenously (5, 10 or 20 mg/kg) or intraduodenally (10, 20 or 50 mg/kg); it exhibits effectiveness by the digestive route at doses only twice as greater as the active i.v. doses: its intravenous anti-aconitine activity is comparable to that of disopyramide, and superior to that of quinidine; lidocaine is inactive in this test. Prifuroline also diminishes ventricular susceptibility to electrical stimulation in open-chest rats; its effect is comparable to that of disopyramide and amiodarone at the same dose levels; quinidine and lidocaine are less effective. Only Prifuroline and propranolol were able to antagonize ouabain toxicity in guinea-pigs, quinidine showing only borderline activity, and disopyramide, lidocaine and verapamil being ineffective. In a model of arrhythmias induced by anoxic stress in rats, all the tested compounds were found active, with Prifuroline and disopyramide providing complete protection at high dose levels. The arrhythmias induced in dogs by coronary artery ligation were markedly antagonized by Prifuroline after doses of 5 and 10 mg/kg i.v. or 30 mg/kg intraduodenally; the duration of its antiarrhythmic activity in this model of arrhythmias in conscious dogs was much longer after intraduodenal than after i.v. administration. Prifuroline was also able to restore sinus rhythm in guinea-pigs after intracardiac conduction blockade with acetylcholine, although being devoid of anticholinergic activity. It also diminishes the maximal frequency of guinea-pig atria electrically stimulated in viro (EC25 = 5 X 10(-6) g/ml).(ABSTRACT TRUNCATED AT 250 WORDS)
Acute effects of intravenous Prifuroline and amiodarone on canine cardiac automaticity, conduction, and refractoriness
J Cardiovasc Pharmacol 1982 May-Jun;4(3):486-92.PMID:6177947DOI:10.1097/00005344-198205000-00021.
We compared the acute electrophysiologic properties of Prifuroline (P), a new aminopyrroline derivative, to those of amiodarone (A) in pentobarbital-anesthetized dogs using His bundle recordings and programmed stimulation. Ten dogs received in randomized order four cumulative doses of P (2.5-20 mg/kg) and of A (1.25-10 mg/kg) with a 14-day interval between drug administrations. In a control group of four dogs receiving the diluent of the drugs, no significant changes occurred in cardiac automaticity, conduction, and refractoriness except for the atrioventricular (AV) nodal functional refractory period (RP), which increased with time (p less than 0.05). P and A produced a significant dose-related decrease in heart rate and in sinus node recovery time, with A being 3.7-3.1 times more potent than P. While atrionodal conduction time increased with both drugs, only P resulted in a significant dose-related increase in the His-Purkinje system conduction time. Prifuroline was 2.9 times more potent than A in increasing the atrial effective refractory period, while A was 2.5 times more potent than P in increasing the ventricular effective refractory period. Both drugs increased the AV nodal refractoriness in a dose-dependent way. These results suggest that the new compound Prifuroline possesses some properties similar to intravenous amiodarone on sinus automaticity, atrionodal conduction, and atrial and ventricular refractoriness. However, its effects on the His-Purkinje System are typical of those of a class I quinidine-like agent.