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  • Title: Rationalized polytherapy for epilepsy.
    Author: Goldsmith P, de Bittencourt PR.
    Journal: Acta Neurol Scand Suppl; 1995; 162():35-9. PubMed ID: 7495188.
    Abstract:
    In the past, epilepsy was usually treated with polytherapy, but with little knowledge as to the interactions and side-effects of the combinations of the anti-epileptic drugs used. Adverse events and sparse clinical knowledge led to monotherapy becoming the treatment regime of choice. A new generation of drugs, which are well-tolerated and have few or predictable interactions, have enabled the reassessment of polytherapy for the treatment of epilepsy. Extensive clinical trials of these drugs are allowing the emergence of a new, rationalized approach to polytherapy. In our study, 19 patients with refractory partial epilepsy, and who were 'socially active and integrated into society', received vigabatrin as add-on therapy. Patients were taking a mean of 1.5 drugs, and five patients were taking small doses of drugs which lead to tolerance, such as barbiturates and benzodiazepines. With vigabatrin as add-on therapy, 14 patients (73%) had a greater than 50% reduction in seizure frequency, and 10 (52%) had a greater than 70% reduction in seizure frequency. In one patient, seizure frequency increased, and two patients developed myoclonic jerks. Vigabatrin was not shown to have any harmful effects in extensive laboratory, EEG and cognitive function tests. In fact, a minor improvement occurred in visual memory, which was probably related to the reduction in seizures. Addition of vigabatrin may, therefore, be of benefit to patients with partial epilepsy refractory to monotherapy with standard anti-epilepsy drugs.
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