Patent ID: 7016723

Claim:
A method of providing power sources and dosage control systems having reliable capacity ratings for transdermal iontophoresis delivery of therapeutic agents, said power source and dosage control systems comprising a plurality of serially connected galvanic couple power sources, the method comprising steps of: (a) manufacturing one or more lots of galvanic couple power sources; (b) determining by sample testing capacity characteristics including an average charge capacity for said galvanic couple power sources of each of said one or more lots to produce tested lots; (c) serially connecting a plurality of said galvanic couple power sources selected from one or more tested lots into power source and control systems; (d) incorporating said power source and control systems into transdermal iontophoresis therapeutic agent delivery devices as the sole sources of power and delivery control; and (e) providing labeling indicating average capacity for said agent delivery devices based on the tested average charge capacities of corresponding tested lots from which said plurality of galvanic power sources are taken.