A supplemental pain medication device may be placed in parallel with a basal rate controller for providing a temporary increased level of pain medication to a patient on demand. a trigger of the supplemental pain medication device must be initially depressed in order to allow fluid to flow through the device so that an upper body of the device which is attached to a plunger may slide into a lower body which is attached to a reservoir. When the upper body is slid into the lower body, the plunger also slides into the reservoir to pump fluidic pain medication out of the device.
