Bristol-myers Squibb Compnay

Bhiku Patel

Hemanshu S Shah

Jonas C Wang

Stacley Au

Cheng Der Yu

Prakash V Parab

Cheng-Der Yu

Mark A Tepper

Susan Genier

The invention provides methods and means for enhancing the epidermal, transdermal and dermal permeation of a topically applied pharmacologically active agent (e.g., a drug or medicament) which has a low rate of skin penetration in the absence of a permeation enhancer and which is unstable and degrades during long-term storage with particular permeation enhancers. Also provided by the invention are methods and means to increase the skin penetration of a pharmacologically active agent which has a normally low rate of skin permeation and causes the instability and degradation of a permeation enhancer with which it is combined over a long period of time. Provided by the invention are at least one first composition containing a drug, a pharmaceutically acceptable salt, chemical derivative or formulation thereof, in a dermatologically acceptable vehicle, and at least one second composition containing a permeation enhancer in an acceptable vehicle. The compositions are physically separated until application to a body or skin surface and are topically applied, either at the same time, or sequentially within a short time of each other, and mixed or blended to form a final active composition, preferably on the skin. In addition, a premixture of the compositions can be made and applied to the skin in accordance with the invention. The invention allows a therapeutically effective amount of drug to be delivered into the skin and systemic circulation and provides significant enhancement of a drug's otherwise low level of skin permeation by the action of permeation enhancer in the active composition at the point of use.

Methods and compositions for enhancing skin permeation of drugs using

A method and system is described for the noninvasive administration of a therapeutic concentration of a deoxyspergualin compound to a patient comprising iontophoretically passing the deoxyspergualin compound through an area of the skin of the patient at a flux effective to provide the therapeutic concentration.

Iontophoretic transdermal delivery of deoxyspergualin compounds

A gel formulation for topical administration with enhanced skin penetration properties comprising a therapeutically effective amount of an imidazole antifungal agent, either by itself or in combination with a steroid anti-inflammatory agent, in a vehicle system that includes lauryl alcohol is disclosed.

Lauryl alcohol as skin penetration enhancer for topical imidazole agents

Stable anhydrous gel formulations for topical antifungal use contain an imidazole, a steroid, a co-solvent system comprising monohydric and dihydric alcohols, and a hydroxyalkylcellulose gellant.

Antifungal gel formulations

An antifungal gel composition, effective at 0.2-2.0% by weight of an imidazole antifungal agent and 0.01-2.5% by weight of a 17-ester corticosteroid antiinflammatory agent, is provided for topical administration. This composition is highly effective in treating fungal infections and is capable of being stored without refrigeration for long periods of time without losing therapeutic effectiveness and while maintaining the uniformity and stability of the gel.

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Amherst, NY, United States of America

Bhiku Patel