We describe a method for the simultaneous liquid-chromatographic determination of ethosuximide, ethylphenacemide, primidone, phenobarbital, carbamazepine, and phenytoin in serum. The drugs, together with an internal standard, are extracted into ethyl acetate at pH 7.0. The extract is analyzed isocratically at ambient temperature on a reversed-phase column of "SAS Hypersil" with a mobile phase o...

A microprocessor-controlled automatic extractor, (PREMTM I) is described with which lipophilic components may be extracted from physiological fluids by means of a selective, solid-phase extraction cartridge, and the extracts presented in dry form for subsequent analysis. This instrument has been successfully evaluated for the extraction of phenobarbital, primidone, and phenytoin from human seru...

Several medications are approved to treat coronavirus disease 2019 (COVID-19) in Korea including nirmatrelvir/ritonavir, remdesivir, and regdanvimab. There is potential drug-drug interaction between antiepileptic drugs (AEDs) the used COVID-19. AEDs such as phenytoin, carbamazepine, phenobarbital, primidone strong cytochrome P450 inducers can inhibit for Particularly, these contraindicated with...

HILE the umsderhyimmg causes of the nsajority of misegaloblast-ic amsemssias are usow knsown, the list is usotyet exhaustive amid it has recemstly been suggested that amsticomsvulsammt drutgs nsay commstitute a mies ’ etiohogic fact-or its sonic cases. The postulated effectof these drutgs is particutlarly strikimsg ins that megaloblastic ausemia is msot seems wit-h the niomispecific toxic agcmm...