フレカイニド

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H225：引火性の高い液体および蒸気

  H370：臓器の障害

• 注意書き

  P210：熱/火花/裸火/高温のもののような着火源から遠ざ けること。－禁煙。

  P260：粉じん/煙/ガス/ミスト/蒸気/スプレーを吸入しないこ と。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P301+P310：飲み込んだ場合：直ちに医師に連絡すること。

  P311：医師に連絡すること。

フレカイニド 価格

フレカイニド 化学特性,用途語,生産方法

• 効能

  抗不整脈薬, ナトリウムチャネル遮断薬

• 説明

  From the chemical point, flecainide is an analog of procainamide, to which a 2.2.2-trifluoroethoxyl group was added at C2 and C3 of the benzene ring, and a diaminoethyl side chain is ended in the piperidine ring.

• 化学的特性

  White Crystalline Powder

• 使用

  Flecainide, as with other local anesthetics, is used for naturally occurring ventricular arrhythmia.

• 定義

  ChEBI: A monocarboxylic acid amide obtained by formal condensation of the carboxy group of 2,5-bis(2,2,2-trifluoroethoxy)benzoic acid with the primary amino group of piperidin-2-ylmethylamine. An antiarrhythmic agent used (in the form of its acetate salt) to prev nt and treat tachyarrhythmia (abnormal fast rhythm of the heart).

• 世界保健機関（WHO）

  The membrane-stabilizing antiarrhythmic agent flecainide was introduced into medicine in 1982. The decision to delete the indications for patients with asymptomatic and less severe symptomatic ventricular arrhythmias was taken on the basis of the results of a trial (CAST study) that showed a two-fold increase in deaths in post-myocardiac patients taking flecainide compared with the placebo group.

• 危険性

  Human systemic effects.

• 臨床応用

  Flecainide (Tambocor) is a fluorinated aromatic hydrocarbon examined initially for its local anesthetic action and subsequently found to have antiarrhythmic effects. Flecainide inhibits the sodium channel, leading to conduction slowing in all parts of the heart, but most notably in the His-Purkinje system and ventricular myocardium. It has relatively minor effects on repolarization. Flecainide also inhibits abnormal automaticity.
  Flecainide is effective in treating most types of atrial arrhythmias. It is also used for life-threatening ventricular arrhythmias. However, flecainide should be used with extreme caution in any patient with structural heart disease. Flecainide crosses the placenta, with fetal levels reaching approximately 70% of maternal levels. In many centers, it is the second-line drug after digoxin for therapy of fetal arrhythmias. Because of the high incidence of proarrhythmia, initiation of therapy or significant increases in dosing should be performed only on inpatients.

• 副作用

  Most adverse effects occur within a few days of initial drug administration. The most frequently reported effects are dizziness, light-headedness, faintness, unsteadiness, visual disturbances, blurred vision (e.g., spots before the eyes, difficulty in focusing), nausea, headache, and dyspnea.
  Worsening of heart failure and prolongation of the PR and QRS intervals are likely to occur with flecainide, and an increased risk of proarrhythmia has been reported.

• 薬物相互作用

  In patients whose condition has been stabilized by flecainide, the addition of cimetidine may reduce the rate of flecainide’s hepatic metabolism, increasing the potential for toxicity. Flecainide may increase digoxin concentrations on concurrent administration.

• 予防処置

  Flecainide is contraindicated in patients with preexisting second- or third-degree heart block or with bundle branch block unless a pacemaker is present to maintain ventricular rhythm. It should not be used in patients with cardiogenic shock.

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