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US 4,749,707 AGranted
Citric acid salt of (+) vinpocetine
AssigneeCovex, S.A.
InventorsFernando Calvo, Maria T. Manresa
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Abstract
A (+) citrate salt of vinpocetine, and a procedure for preparing the salt, is disclosed. The salt is useful as a medicinal agent in cerebral-vascular disorders and in neurological treatments relating to cerebral oxygenation, especially in elderly persons.
Claims4
A (+) citrate salt of vinpocetine, having the structure set out in Formula (I), ##STR3## wherein Et represents an ethyl group.
A pharmaceutical composition, comprising aqueous and hydroalcoholic dilutions of (+) vinpocetine citrate salt containing about 2 mg of (+) vinpocetine base per milliliter of solution.
Dependencies are inferred from the claim text.