Transdermal drug delivery device.

摘要

An iontophoretic device is taught which is positionable on skin of a recipient. An insulating member (22) includes therethrough at least one reservoir (21) containing a drug between outer and inner (recipientwise) electrodes (24, 23) adhered to surface of the insulating member (22). The inner electrode (23) preferably is spaced from a rim of the drug reservoir (21) by the same distance as the depth and width of the reservoir, the electrodes (23, 24) are connected to field generating means which draw the ionic drug into the patient and outward from the rim of the reservoir.