A device for delivering an active agent to target tissue at a site that includes a bodily fluid includes a body having a first exterior surface including a first section having a local, discrete recessed area formed in the body for holding the active agent. The body includes a surface flow feature in the form of a canal that is formed in the body and is recessed relative to the exterior surface. The surface flow feature interfaces with the first section and the local recessed area and is configured so as to guide or modify flow of the bodily fluid relative to the body such that fluid communication is provided between the bodily fluid and the local recessed area. The local recessed area is recessed relative to at least a portion of the canal.
