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Year : 2009  |  Volume : 41  |  Issue : 1  |  Page : 41-46

Influence of nebivolol on anticonvulsant effect of lamotrigine

1 ITS Paramedical College, Ghaziabad, India
2 Jamia Hamdard, New Delhi-110 062, India

Correspondence Address:
Radha Goel
ITS Paramedical College, Ghaziabad
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0253-7613.48890

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Objective: The present study describes the effect of nebivolol (NBV) either alone or in combination with lamotrigine (LTG) using increasing current electroshock seizures (ICES) model in mice. Materials and Methods: Male albino mice of Swiss strain each weighing 18-30 g were used. Lamotrigine (Lamitor tablets, Torrent; 1.5 and 3.0 mg/kg) and NBV (Nebicard tablets, Torrent; 0.25 and 0.5 mg/kg) were suspended in 0.25% of carboxy methyl cellulose (CMC) in 0.9% saline and administered orally in volumes of 10 mg/kg. Control animals received an equivalent volume of 0.25% CMC in 0.9% saline suspension. The anticonvulsant effects of the drugs were measured using ICES model whereas cognitive behavior was measured by the spontaneous alternation behavior and grip-strength test. The biochemical estimation was done by measuring the lipid peroxidation and reduced glutathione (GSH). Results: Both NBV and LTG produced significantly enhanced seizure threshold (ST), decreased grip strength, inhibited lipid peroxidation, and increased brain GSH levels in acute and chronic dosages likened to control group, whereas there was no significant effect on alternation scores. The combination of NBV with LTG significantly potentiated the ST when compared to LTG. Conclusion: Nebivolol showed antiepileptic effects in addition to its reported antihypertensive effect, which could be attributed to action of the two drugs through different mechanisms or due to drug interaction that may be pharmacodynamic or pharmacokinetic needing elucidation.


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