Document Detail

Therapeutic monitoring of the new antiepileptic drugs.
MedLine Citation:
PMID:  10663446     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To discuss the potential value of therapeutic drug monitoring (TDM) of the new antiepileptic drugs gabapentin, lamotrigine, oxcarbazepine, tiagabine, topiramate, vigabatrin and zonisamide. METHODS: A review of studies of the relationship between plasma concentrations and effects of new antiepileptic drugs is provided. Furthermore, the potential value of TDM of these drugs is discussed in relation to their mode of action and their pharmacokinetic properties. The various methods that are available for analysing plasma concentrations of the new antiepileptic drugs are also briefly reviewed. RESULTS: The available information on the relationship between plasma concentrations and effects of the new drugs is scarce. For most drugs, wide ranges in concentrations associated with seizure control are reported, and a considerable overlap with drug levels among non-responders and also with concentrations associated with toxicity is often noted. However, very few studies have been designed primarily to explore the relationship between drug plasma concentrations and effects. Consequently, there are no generally accepted target ranges for any of the new antiepileptic drugs. Although the available documentation clearly is insufficient, the pharmacological properties of some of the drugs, in particular lamotrigine, zonisamide and, possibly, oxcarbazepine, topiramate and tiagabine, suggest that they may be suitable candidates for TDM. CONCLUSION: TDM of some of the new antiepileptic drugs may be of value in selected cases, although routine monitoring in general cannot be recommended at this stage. Further systematic studies designed specifically to investigate concentration-effect relationships of the new antiepileptic drugs are urgently needed.
T Tomson; S I Johannessen
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  European journal of clinical pharmacology     Volume:  55     ISSN:  0031-6970     ISO Abbreviation:  Eur. J. Clin. Pharmacol.     Publication Date:  2000 Jan 
Date Detail:
Created Date:  2000-03-17     Completed Date:  2000-03-17     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  1256165     Medline TA:  Eur J Clin Pharmacol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  697-705     Citation Subset:  IM    
Department of Clinical Neuroscience, Karolinska Institute at Karolinska Hospital, Stockholm, Sweden.
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MeSH Terms
Anticonvulsants / blood,  pharmacology,  therapeutic use*
Dose-Response Relationship, Drug
Drug Monitoring / methods*
Epilepsy / drug therapy*
Reg. No./Substance:

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