Claims for Patent: 4,812,313

Summary for Patent: 4,812,313

Title:	Method for lessening the incidence of anginal attacks
Abstract:	A medical bandage is disclosed comprising a reservoir containing a gelled fluid, rheological agent and a drug. A method of using the bandage for producing a beneficial effect is disclosed also.
Inventor(s):	Gale; Robert M. (Mountain View, CA)
Assignee:	ALZA Corporation (Palo Alto, CA)
Application Number:	07/132,829
Patent Claims:	1. A method for lessening the incidence of anginal attacks in a patient, which method comprises: (a) positioning on the skin of a patient prone to anginal attacks, a medical bandage comprising: (1) a backing member that is substantially impermeable to the passage of drug; (2) a reservoir in contact with the backing member, the reservoir comprising gelled silicone fluid, silicon dioxide, and a vasodilator useful as a prophylactic antianginal drug; and (3) a rate controlling membrane in contact with the reservoir, which membrane is permeable to the passage of the vasodilator, controls its rate of release from the bandage, and is in contact with the backing member; and, (b) administering transdermally the vasodilator in a prophylactically effective amount for producing the intended benefit. 2. The method of lessening the incidence of anginal attacks according to claim 1 wherein the vasodilator is administered in an amount of about 10 to 2000 .mu./hr. 3. The method of lessening the incidence of anginal attacks according to claim 1 wherein the vasodilator is nitroglycerin and it is adminstered at about 20 to 1200 .mu.g/hr. 4. The method for lessening the incidence of anginal attacks according to claim 1 wherein the vasodilator is administered in a prophylactic priming dose for its intended effect. 5. The method for lessening the incidence of anginal attacks according to claim 1 wherein the vasodilator is administered in a prophylactically effective amount at a substantially constant rate over a prolonged period of time.