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No Detectable Phenytoin Plasma Levels After Topical Phenytoin Cream Application in Chronic Pain: Inferences for Mechanisms of Action
Author(s) -
David J Kopsky,
Jan M Keppel Hesselink,
Alan Russell,
Alexander F.J.E. Vrancken
Publication year - 2022
Publication title -
journal of pain research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 49
ISSN - 1178-7090
DOI - 10.2147/jpr.s345347
Subject(s) - phenytoin , medicine , analgesic , anesthesia , anticonvulsant , pharmacology , epilepsy , psychiatry
Topical phenytoin can act as an analgesic in chronic pain, but it is unclear if topical phenytoin gives rise to systemic side effects. Therefore, the aim of this study is: 1) to evaluate safety in chronic pain patients who used topical phenytoin up to 30% applied daily on intact skin and mucous membrane, through determining phenytoin plasma levels; and 2) to elaborate on the analgesic mechanism of action.

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