Tocainide kinetics in congestive heart failure

Syed M. Mohiuddin, Dennis J. Esterbrooks, Daniel E. Hilleman, Wilbert S. Aronow, Albert J. Patterson, Michael H. Sketch, Aryan N. Mooss, Tom T. Has, Jack W. Reich

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Abstract

Our subjects were 20 patients with life-threatening or symptomatic ventricular arrhythmias refractory to standard oral antiarrhythmic drugs but responsive to intravenous lidocaine. After evaluation of arrhythmias and treatment with intravenous lidocaine, oral tocainide dosage regimens were based on age, weight, and clinical status. During initial tocainide treatment, six plasma tocainide concentrations were recorded within a single dosing interval in 17 of 20 patients, by which standard kinetic parameters were calculated. Eventual trough steady-state tocainide plasma concentrations were predicted from the derived patient-specific kinetic parameters. Mean daily tocainide dose was 1800 mg (1200 to 2400). Mean daily tocainide doses (milligram per kilogram) did not differ significantly among responders and nonresponders or among patients with or without congestive heart failure. Mean peak and trough plasma concentrations 48 hr after initiation of therapy were 9.8 and 7.5 mcg/ml. Tocainide plasma concentrations did not correlate with responders and nonresponders or identify patients who were developing adverse reactions to tocainide. There were no significant differences in any of the calculated kinetic parameters as a function of response to tocainide or the presence of congestive heart failure, but there was a trend toward smaller volumes of distribution and higher average plasma concentrations at steady state in patients with congestive heart failure. There were no significant kinetic differences among patients with and without congestive heart failure, but a trend toward higher plasma concentrations in patients with congestive heart failure and the small number of patients suggests that further data collection is necessary before dosage recommendations can be made.

Original languageEnglish
Pages (from-to)596-603
Number of pages8
JournalClinical Pharmacology and Therapeutics
Volume34
Issue number5
StatePublished - Nov 1983

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Tocainide
Heart Failure
Lidocaine
Cardiac Arrhythmias
Anti-Arrhythmia Agents
Therapeutics

All Science Journal Classification (ASJC) codes

  • Pharmacology

Cite this

Mohiuddin, S. M., Esterbrooks, D. J., Hilleman, D. E., Aronow, W. S., Patterson, A. J., Sketch, M. H., ... Reich, J. W. (1983). Tocainide kinetics in congestive heart failure. Clinical Pharmacology and Therapeutics, 34(5), 596-603.

Tocainide kinetics in congestive heart failure. / Mohiuddin, Syed M.; Esterbrooks, Dennis J.; Hilleman, Daniel E.; Aronow, Wilbert S.; Patterson, Albert J.; Sketch, Michael H.; Mooss, Aryan N.; Has, Tom T.; Reich, Jack W.

In: Clinical Pharmacology and Therapeutics, Vol. 34, No. 5, 11.1983, p. 596-603.

Research output: Contribution to journalArticle

Mohiuddin, SM, Esterbrooks, DJ, Hilleman, DE, Aronow, WS, Patterson, AJ, Sketch, MH, Mooss, AN, Has, TT & Reich, JW 1983, 'Tocainide kinetics in congestive heart failure', Clinical Pharmacology and Therapeutics, vol. 34, no. 5, pp. 596-603.
Mohiuddin, Syed M. ; Esterbrooks, Dennis J. ; Hilleman, Daniel E. ; Aronow, Wilbert S. ; Patterson, Albert J. ; Sketch, Michael H. ; Mooss, Aryan N. ; Has, Tom T. ; Reich, Jack W. / Tocainide kinetics in congestive heart failure. In: Clinical Pharmacology and Therapeutics. 1983 ; Vol. 34, No. 5. pp. 596-603.
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