Abstract: A device useful for administration of pharmacologically-active substances transdermally, orally, or by means of subdermal implant includes an impermeable backing layer, a plasticized polyvinyl chloride layer, and an adhesive layer, wherein the plasticized polyvinyl chloride layer includes from about 20 up to about 70% by weight of a polyvinyl chloride resin, from about 20 up to about 70% by weight of a plasticizer, and from about 0.5 up to about 35% by weight of a pharmacologically-active substance such as isosorbide dinitrate, nicotine, clonidine, guanfacine, indomethacin, nitroglycerin, and prostaglandin and optionally excipients.
Type:
Grant
Filed:
February 8, 1995
Date of Patent:
November 21, 1995
Assignee:
Hercon Laboratories Corporation
Inventors:
Agis Kydonieus, Kishore R. Shah, Bret Berner
Abstract: An antimicrobial wound dressing and method of wound treatment, the wound dressing having a layer of a collagen dressing material impregnated with lyophilized, stabilized chlorine-containing compounds which generate on activation chlorine dioxide, like a mixture of sodium chlorate and sodium chlorite, and an adjacent layer secured thereto containing a dry, activating amount of an acidic compound, such as citric acid, whereby moisture from the wound activates the dry chlorine moiety to treat the wound.