A container system includes a first container assembly and a delivery device. The first container assembly has an administration port and a medication port. The delivery device is attached to the first container assembly, and includes a housing, a connector, a second container, and a plunger shaft. The housing encloses an interior space with the medication port disposed within the interior space. The connector has at least one cannula defining a first sharp end aligned with the medication port and a second sharp end. The second container has an outlet port aligned with the second sharp end of the at least one cannula and a plunger seal moveable within the second container to force contents of the second container through the port. The plunger shaft assembly has a first end that abuts the plunger seal and a second end connected to a trigger.
