| abstract |
The present invention provides a method of depositing a coating comprising a polymer and a pharmaceutical formulation on a substrate, comprising: discharging one or more pharmaceutical formulations in a therapeutically desirable form in dry powder form through a first orifice; Discharging at least one polymer in the form of a dry powder through the second orifice; Depositing polymer and / or pharmaceutical agent particles on the substrate, wherein a potential is maintained between the substrate and the pharmaceutical agent and / or polymer particles to form the coating; And sintering the coating under conditions that do not substantially alter the form of the pharmaceutical formulation. n n Powdered medicines, polymers, pharmaceutical preparations, biologically active agents, coatings. |