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US 8,771,711 B2Granted
Sprayable gel-type skin/mucosa-adhesive preparation and administration system using the preparation
AssigneeToko Yakuhin Kogyo Kabushiki Kaisha
InventorTaizou Kamishita
Life of this patent
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Abstract
The present invention provides a sprayable gel-type skin/mucosa-adhesive preparation comprising a gel formulation which contains an active pharmaceutical ingredient in a gel base material comprising a skin/mucosa-adhesive agent and an administration system comprising the preparation.
Claims12
A sprayable gel-type skin/mucosa-adhesive preparation that takes a particle form after spraying, comprising a gel formulation, which contains an active pharmaceutical ingredient in a gel base material comprising a skin/mucosa-adhesive agent,
- wherein the skin/mucosa-adhesive agent comprises a carboxy vinyl polymer,
- the skin/mucosa-adhesive agent is treated with an outside shearing force that adjusts viscosity of the skin/mucosa-adhesive agent to be in the range of 50 mPa·s to 5000 mPa·s, and
- a particle of the sprayed formulation has a viscosity retention rate of about 100%.
Dependencies are inferred from the claim text.