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Details for Patent: 4,201,211

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Summary for Patent: 4,201,211

Title: Therapeutic system for administering clonidine transdermally
Abstract:Therapeutic system in the form of a skin patch that administers clonidine transdermally in an initial priming dose of 10 to 300 mcg/cm.sup.2 of skin that brings the concentration of clonidine in the blood to a level sufficient to elicit alpha-adrenergic stimulation without intolerable side effects, followed by a substantially constant continuous dosage in the range of 0.1 to 100 mcg/hr that maintains said level. The system is a four-layer laminate of, from the top: a protective backing; a gelled, mineral oil-polyisobutene-clonidine reservoir lamina that is the source of the clonidine for the continuous constant dosage; a microporous membrane that controls the constant dosage rate; and a gelled, mineral oil-polyisobutene-clonidine contact adhesive layer that is the source of the clonidine for the priming dose and the means by which the system is attached to the skin.
Inventor(s): Chandrasekaran; Santosh K. (Palo Alto, CA), Darda; Siegfried (Ingelheim am Rhein, DE), Michaels; Alan S. (Atherton, CA), Cleary; Gary W. (Palo Alto, CA)
Assignee: ALZA Corporation (Palo Alto, CA) Boehringer Ingelheim GmbH (Ingelheim am Rhein, DE)
Application Number:05/815,033
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International Patent Family for Patent: 4,201,211

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina218037<disabled in preview>
AustriaA905877<disabled in preview>
Austria362884<disabled in preview>
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