alexa Pregabalin: as adjunctive treatment of partial seizures.
Pharmaceutical Sciences

Pharmaceutical Sciences

Pharmaceutica Analytica Acta

Author(s): Warner G, Figgitt DP

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Abstract Pregabalin, the pharmacologically active S-enantiomer of 3-aminomethyl-5-methylhexanoic acid, possesses anticonvulsant activity. Pregabalin binds with high affinity and specificity to voltage-gated calcium channel alpha(2)-delta proteins. The putative mechanism of action of the drug is reduced excitatory neurotransmitter release caused by binding to the alpha(2)-delta protein, resulting in allosteric modulation of P/Q-type voltage-gated calcium channels. In three well designed trials, oral pregabalin as adjunctive therapy in patients with refractory partial seizures was significantly (p < or = 0.0007) more effective than placebo in reducing seizure frequency when administered at dosages of 150-600 mg/day (as two or three divided doses). Adjunctive pregabalin produced an overall mean 41.3\% improvement from baseline in 28-day seizure-free rate in four long-term (maximum exposure 1764 days), open-label studies in 1480 patients. CNS-related effects (e.g. dizziness and somnolence) were the most frequent dose-related treatment-emergent adverse events associated with adjunctive pregabalin therapy.
This article was published in CNS Drugs and referenced in Pharmaceutica Analytica Acta

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