Surgery – Means for introducing or removing material from body for... – Infrared – visible light – ultraviolet – x-ray or electrical...
Patent
1995-05-03
1998-12-29
Bockelman, Mark
Surgery
Means for introducing or removing material from body for...
Infrared, visible light, ultraviolet, x-ray or electrical...
210681, A61N 130
Patent
active
058533834
ABSTRACT:
A method is provided for preparing drug formulations suitable for electrotransport drug delivery. The drug to be delivered, present in salt form, is contacted with an ion exchange material prior to incorporation into the reservoir (26) of an electrotransport delivery system (10). In this way, the drug salt is partially or completely neutralized. This technique is useful for adjusting the pH of the drug formulation without incorporating extraneous materials, e.g., competing ions or the like, into the reservoir (26).
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ALZA Corporation
Bockelman Mark
Miller D. Byron
Rogers Christopher P.
Stone Steven F.
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