The present invention provides an infusion pump having a main body portion. The main body portion includes a display area for displaying user interface information. At least one pump module is provided which is removably secured to the main body portion and adapted to receive an IV tube. The pump module can apply pumping action to the IV tube. The pump module further includes an auxiliary display area for displaying supplemental user interface information. A microprocessor is contained in the main body portion for generating user interface information on the display areas.