Patent ID: 7537795

Claim:
A method of making a device for transdermally delivering a pharmacologically active agent, the method comprising: providing a member having a plurality of stratum corneum-piercing microprotrusions; applying an aqueous solution of the pharmacologically active agent onto the member; and drying said applied aqueous solution to form a dry agent-containing coating on said member, said coating being less than a thickness of the microprotrusions; wherein the agent is sufficiently potent to be therapeutically effective when administered in an amount of less than about 1 mg, said agent having an aqueous solubility at about 25° C. of greater than about 50 mg/ml and said aqueous solution having a viscosity at about 25° C. less than about 500 centipoises; and wherein the method provides uniformity of coating from microprotrusion to microprotrusion.