Iontophoresis is a noninvasive technique in which a small electric current is applied to enhance ionized drug penetration into tissue. The drug is applied with an electrode carrying the same charge as the drug, and the ground electrode, which is of the opposite charge, is placed elsewhere on the body to complete the circuit. The drug serves as a conductor of the current through the tissue . Figu re 26.1 shows a diagram of ocular iontophore sis of a positively charged drug in a rabbit.
|Title of host publication||Enhancement in Drug Delivery|
|Number of pages||23|
|State||Published - 1 Jan 2006|
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