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Polymer for Transdermal Drug Delivery Creates a "Virtual Patch"
PharmaDur™ is a novel polymer-based technology that provides significant benefits over conventional forms of transdermal drug delivery -- a worldwide market well in excess of $3 billion. Also used for transmucosal and ophthalmic applications, PharmaDur™ provides significant advantages over currently available mechanisms for drug delivery. PharmaDur™ is a topical application that yields an invisible, durable and imperceptible hydrogel film ("Virtual Patch"). It establishes a hydrogel film that creates a monolithic reservoir from which drug substances are released at a controlled rate for transdermal transport. Unlike conventional gels and creams, it functions like a patch to provide true controlled released delivery of APIs (active pharmaceutical ingredients). Transdermal transport of actives bypasses the digestive environment of the stomach and filtration by the liver, thus delivering more active to the site where it is required. A lower active dose may be as effective when delivered transdermally as is a higher dose when delivered orally.relates composition hydrophilic polystyrene graft copolymer (Copolymer) bioadhesive treatment mammalian skin aqueous non-aqueous formulations biologically active agent cosmetic purposes and/or dermatological conditions ailments wounds ingredient either volatile non-volatile solvents dispersion further transdermal administration agents systemic activity tissues organs body topical site application BACKGROUND Current therapeutically creams lotions solutions ointments affected area indications dryness psoriasis fungal infections acne eczema dermatitis itchiness insect bites ultra violet light absorbing (sun screen/sun tan) problem associated easily dissipated rubbing clothing washing normal perspiration duration effectiveness short film compositions present retentive able long-lasting moisturizing sustained

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