A new column packing, SP-2510 DA (Supelco, Inc., Bellefonte, Pa. 16823), is an excellent stationary phase for the determination of a wide variety of anticonvulsant drugs by gas--liquid chromatography without derivatization. However, when uncomplicated extraction procedures are used, serum cholesterol interferes with the determination of primidone. By the simple expedient of adding a short "pre-...

Essential tremor (ET) is one of the most common tremor disorders in the world. Despite this, only two medications have received Level A recommendations from the American Academy of Neurology to treat it (primidone and propranolol). Even though these medications provide relief to a large group of ET patients, up to 50% of patients are non-responders. Additional medications to treat ET are needed...

575 IntroductIon Anti-epileptic medications can be divided into two major groups. The traditional antiepileptic drugs, which were released for use prior to 1978, are Phenobarbital, Phenytoin, Primidone, Clonazepam, Ethosuximide, Carbamazapine and Valproate. There was a 15-year period from 1978 to 1993, when no new antiseizure drug was approved for use. Since 1993, an additional eight new anti-e...

BACKGROUND The accuracy and precision of methods for the measurement of the anticonvulsants phenytoin, phenobarbital, primidone, carbamazepine, ethosuximide, and valproate in human serum were assessed in 297 laboratories that were participants in the United Kingdom National External Quality Assessment Scheme (UKNEQAS). METHODS We distributed lyophilized, serum-based materials containing low, ...

The evoked effects of the negatively charged drugs phenobarbital and barbituric acid, the positively charged imipramine, perphenazine and trifluoperazine, and the neutral primidone, on the synaptosome-associated acetylcholinesterase activity were studied. A marked increase in the enzyme activity was exhibited in the presence of low concentrations (up to 3 mM) of phenobarbital, barbituric acid a...

INTRODUCTION Antiepileptic-antidepressant combinations are frequently used by clinicians; their pharmacokinetic (PK) and pharmacodynamic (PD) drug interactions (DIs) have not been well studied but are frequently likely to be clinically relevant. AREAS COVERED This article provides a comprehensive review of PK DIs between antiepileptics and antidepressants. In the absence of PD DI studies, PD ...

There is emerging evidence to support the efficacy of some antiepileptic drug (AED) combinations in refractory epilepsy. Definitive clinical studies are, however, difficult to perform. Experimental seizure models can be employed to identify potentially useful combinations for subsequent clinical evaluation. We have investigated the anticonvulsant effects of topiramate (TPM) in combination with ...

conclusions administration of aeds in general and levetiracetam in particular should be based on attention to pharmacokinetic behavior in terms of monotherapy or polypharmacy. case presentation two cases were studied, one patient was a 32-year-old male and the other was a 14-year-old female. the key words relevant to search topics were surveyed using pubmed (united states national library of me...