Effect of calcium channel blockers on experimentally induced seizures in rats.
Indian J Exp Biol
;
1990 Jul; 28(7): 605-8
Artículo
en Inglés
| IMSEAR
| ID: sea-58748
ABSTRACT
Chemically different classes of calcium channel blockers were examined in rats for their effects on behavior, tolerability and protection against maximal electroshock seizures (MES) and pentylenetetrazol (PTZ) induced seizures. In MES test at doses (mg/kg, ip) that were devoid of side effects, felodipine, 50, afforded 100% protection, while nimodipine, 5; pimozide, 10; and thioridazine, 25, showed 50 to 66% protection. Nifedipine, 10, and diltiazem, 50, showed 30 and 66% protection respectively, but were associated with side effects. Verapamil and loperamide were ineffective against MES and PTZ induced seizures. Nimodipine, 1 mg/kg, ip, was the most potent agent and produced 100% protection against PTZ. Equieffective doses were pimozide, 25, felodipine, 50, and thioridazine, 50. The rest of the calcium channel blockers showed marginal to moderate activity against chemoshock. The data obtained suggest that some calcium channel blockers possess anticonvulsant activity and may be considered as adjuvant therapeutic agents in epileptics refractory to conventional antiepileptic medication.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Asunto principal:
Pentilenotetrazol
/
Ratas
/
Ratas Endogámicas
/
Convulsiones
/
Femenino
/
Masculino
/
Bloqueadores de los Canales de Calcio
/
Electrochoque
/
Animales
/
Anticonvulsivantes
Idioma:
Inglés
Revista:
Indian J Exp Biol
Año:
1990
Tipo del documento:
Artículo
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