Buccal, polar and non-polar spray containing ondansetron

Abstract

Buccal aerosol sprays or capsules using polar and non-polar solvents have now been developed which provide ondansetron for rapid absorption through the oral mucosa, resulting in fast onset of effect. The buccal polar compositions of the invention comprise formulation I: aqueous polar solvent, ondansetron, and optional flavoring agent; formulation II: aqueous polar solvent, ondansetron, optionally flavoring agent, and propellant; formulation III: non-polar solvent, ondansetron, and optional flavoring agent; formulation IV: non-polar solvent, ondansetron, optional flavoring agent, and propellant; formulation V: a mixture of a polar solvent and a non-polar solvent, ondansetron, and optional flavoring agent; formulation VI: a mixture of a polar solvent and a non-polar solvent, ondansetron, optional flavoring agent, and propellant.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation-in-part of application Ser. No. 10 / 230,085, filed Aug. 29, 2002, now pending, which is a continuation-in-part of application no, 09 / 537,118, filed Mar. 29, 2000 which is a continuation-in-part of the U.S. national phase designation of PCT / US97 / 17899 filed Oct. 1, 1997, the disclosures of which are incorporated by reference herein in their entirety.BACKGROUND OF THE INVENTION[0002]It is known that certain biologically active compounds are better absorbed through the oral mucosa than through other routes of administration, such as through the stomach or intestine. However, formulations suitable for such administration by these latter routes present their own problems. For example, the biologically active compound must be compatible with the other components of the composition such as propellants, solvents, etc. Many such formulations have been proposed. For example, U.S. Pat. No. 4,689,233, Dvorsky et al.,...

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