A drug delivery system includes a delivery container including a container body adapted to accommodate a drug therein, a supply line, a flow rate sensor, and a flow controller. The delivery container further includes an outlet port and is constructed from a resilient material. The container body is adapted to exert an urging force on the drug to expel the drug from the outlet port. The supply line is operably coupled to the outlet port to deliver the drug to a user. The flow sensor senses a flow rate of the drug within the supply line. The flow controller is configured to regulate a flow rate of the drug; the flow controller includes a supply line restrictor and a controller for adjusting the supply line restrictor between at least two settings.
