Method and apparatus for pulsed iontophoretic drug delivery
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United States of America Patent
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Sep 10, 1991
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N/A
app pub date -
Dec 22, 1989
filing date -
Dec 22, 1989
priority date (Note) -
Expired
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Abstract
A method and apparatus are disclose for transdermal iontophoretic delivery of ionic species, such as a drug in ionic form, in which therapeutic, electrical pulses having controlled, distinctive, dual-segment waveform characteristics are applied which facilitate more efficient drug administration throughout each pulse. The therapeutic pulses are generated at a predetermined frequency and have a predetermined pulse width. A first pulse segment and a second pulse segment comprise each dual-segment, therapeutic pulse. The electrical attributes of each pulse segment, including amplitude and duration, are controlled to produce the desired, pulsed output waveform.
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