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Details for Patent: 4,031,894

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Summary for Patent: 4,031,894

Title: Bandage for transdermally administering scopolamine to prevent nausea
Abstract:Method and therapeutic system in the form of a bandage that administer scopolamine base transdermally in an initial pulse of 10 to 200 .mu.g/cm.sup.2 of skin that quickly brings the concentration of scopolamine in the plasma to a level at which emesis and nausea are inhibited without intolerable side effects, followed by a substantially constant dosage in the range of 0.3 to 15 .mu.g/hr that holds said level. The bandage is a four-layer laminate of, from the top: a protective backing; a gelled, mineral oil-polyisobutene-scopolamine reservoir lamina that is the source of the constant dosage; a microporous membrane that controls the constant dosage rate; and a gelled, mineral oil-polyisobutene-scopolamine adhesive layer that is the source of the pulse dose and the means by which the bandage is attached to the skin.
Inventor(s): Urquhart; John (Palo Alto, CA), Chandrasekaran; Santosh Kumar (Palo Alto, CA), Shaw; Jane Elizabeth (Atherton, CA)
Assignee: Alza Corporation (Palo Alto, CA)
Application Number:05/721,602
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