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Lidocaine elimination: Effects of metoprolol and of propranolol
Author(s) -
Conrad Kenneth A,
III James M Byers,
Finley Paul R,
Burnham Leah
Publication year - 1983
Publication title -
clinical pharmacology and therapeutics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.941
H-Index - 188
eISSN - 1532-6535
pISSN - 0009-9236
DOI - 10.1038/clpt.1983.20
Subject(s) - metoprolol , propranolol , lidocaine , dosing , anesthesia , pharmacology , medicine , clinical pharmacology , chemistry
The effects of administration of metoprolol and propranolol on lidocaine elimination were studied in six healthy young men who did not smoke. Each received three single intravenous doses of lidocaine (2.5 to 3.0 mg/kg injected over 10 min): one alone, one after 1 day pretreatment with propranolol (40 mg orally every 6 hr), and one after 1 day pretreatment with metoprolol (50 mg orally every 6 hr). Lidocaine clearance was 0.88 ± 0.28 l · hr −1 · kg −1 before beta blockade, 0.61 ± 0.20 l · hr −1 · kg −1 during metoprolol dosing, and 0.47 ± 0.16 l · hr −1 · kg −1 during propranolol dosing. There was no correlation between the change in lidocaine elimination and the steady‐state concentrations of metoprolol or propranolol, nor between the change in lidocaine clearance and the change in resting heart rate produced by either beta blocker. Metoprolol and propranolol reduce lidocaine elimination significantly. Clinical Pharmacology and Therapeutics (1983) 33, 133–138; doi: 10.1038/clpt.1983.20