An implantable delivery device system for delivery of a medicament to a bladder includes a device body, a drug coating disposed over at least a portion of the device body, and an insertion tool. The device body includes a first end and a second end opposite of the first end, the first end having a first diameter and including a sharp tip for penetrating tissue and the second end having a second diameter and including a head portion. The second diameter is larger than the first diameter. The drug coating is disposed over a portion of the device body and is provided for treatment of an over active bladder. The insertion tool has a shaft located between a proximal end of the tool that includes a handle shaft and a distal end of the tool that is attachable to the head of the device.