Document Detail


An analytical pharmacodynamic model for nondepolarizing neuromuscular blocking agents.
MedLine Citation:
PMID:  6453216     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A pharmacodynamic model for nondepolarizing neuromuscular blocking agents (NMBA) is developed and tested with different sets of data (NMBA plasma concentration and time evolution of muscular paralysis). This model takes into account the binding of NMBA to the cholinergic motor endplate receptors and thus permits estimation of the apparent equilibrium constant of the NMBA-receptor exchange. The parameters defining the relationship between relative postsynaptic receptor occupation and muscular paralysis can also be determined. The simulated muscular paralysis time curves, calculated for various modes of NMBA administration (loading injection and multiple injections or continuous infusion) are comparable to those observed clinically. As compared to previous NMBA pharmacodynamic models, the model presented in this study utilizes and describes all the main steps between changes in the plasma NMBA concentration and the observed response: pharmacokinetics, ligand-receptor exchanges, and receptor occupation-effect relationship. This model illustrates a general methodology for the study of pharmacokinetic and pharmacodynamic problems.
Authors:
A d'Hollander; C Delcroix
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of pharmacokinetics and biopharmaceutics     Volume:  9     ISSN:  0090-466X     ISO Abbreviation:  J Pharmacokinet Biopharm     Publication Date:  1981 Feb 
Date Detail:
Created Date:  1981-07-23     Completed Date:  1981-07-23     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0357115     Medline TA:  J Pharmacokinet Biopharm     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  27-40     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Humans
Kinetics
Models, Biological
Motor Endplate / metabolism
Neuromuscular Nondepolarizing Agents / metabolism*
Receptors, Drug / metabolism
Chemical
Reg. No./Substance:
0/Neuromuscular Nondepolarizing Agents; 0/Receptors, Drug

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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