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Carbamazepine, Serum or Plasma

Carbamazepine, Serum or Plasma

Regular price $52.50 USD
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This heterocyclic (iminostilbene) compound has potent antiepileptic properties and is effective alone or with other antiepileptic drugs in partial seizures, especially complex partial seizures, generalized tonic-clonic seizures, and combinations of these seizure types. Carbamazepine generally is ineffective for absence, myoclonic, and atonic seizures. In children with symptomatic generalized epilepsy and continuous spike-and-wave discharge, these seizure types may develop or tonic-clonic seizures may increase in frequency with use of carbamazepine. It has also been noted1 that the dose of carbamazepine cannot be used as a reliable index for predicting the serum concentration of either total or free carbamazepine serum concentrations in children with epilepsy.

Comparative clinical trial data indicate that patients with partial seizures may tolerate carbamazepine better than phenobarbital and primidone, but individual responses vary. Many clinicians consider carbamazepine a drug of choice for initial therapy in idiopathic and symptomatic localization-related epilepsies, especially in children and women. This drug is increasingly preferred to phenobarbital in pediatric patients because it has less effect on cognition and behavior. It is reported to have psychotropic activity that may increase alertness and elevate mood in depressed epileptic patients, but not in otherwise normal patients. Mental improvements may be due to substitution of carbamazepine for sedative drugs, control of seizures, or a direct psychotropic effect. Carbamazepine can induce the hepatic enzymes CYP3A4, CYP1A2, and CYP2C9, resulting in decreased serum levels of many drugs (eg, alprazolam, clozapine, diazepam, haloperidol, risperidone, and tricyclic antidepressants).

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