In one aspect, containment devices are provided that include a microchip element having one or more containment reservoirs that are configured to be electrically activated to open； an electronic printed circuit board (PCB) or a silicon substrate positioned adjacent to the microchip element； one or more electronic components associated with the microchip element or the PCB/silicon substrate； and a first inductive coupling device associated with the microchip element or the PCB/silicon substrate, wherein the first inductive coupling device is in operable communication with the one or more electronic components. In another aspect, implantable drug delivery devices are provided that include a body housing at least one drug payload for actively controlled release, wherein the ratio of the volume of the at least one drug payload to the total volume of the implantable drug delivery device is from about 75 μL/cc to about 150 μL/cc.
