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[Benefit of monitoring the level of blood flecainide acetate in an elderly patient with ventricular premature contractions].

Authors
Type
Published Article
Journal
Nihon Ronen Igakkai zasshi. Japanese journal of geriatrics
Publication Date
Volume
34
Issue
1
Pages
54–59
Identifiers
PMID: 9077106
Source
Medline

Abstract

A 67-year-old woman without organic heart, disease had symptomatic ventricular premature contractions. Because class Ia, Ib and IV antiarrhythmic drugs did not prevent the premature contractions, the patient was treated with flecainide acetate at a dose of 50 mg t.i.d. Adverse reactions were noted. After measurement of the blood drug level, the dose was reduced to 50 mg b.i.d. The adverse reactions disappeared, and the arrhythmia was controlled. Flecainide acetate has a relatively long blood elimination half-life and a narrow safety margin. When some antiarrhythmic drugs are used in elderly patients, blood drug level monitoring is useful in preventing adverse reactions and in designing appropriate therapy.

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