it is a primary object of the present invention to provide an automated system based on an integral fluid bag for administering a variety of intravenous drug regimens and reducing the vagaries of existing manual systems . the fluid has multiple chambers configured to implement a prescribed intravenous medical therapy . each chamber &# 39 ; s geometry , sequence and position , alone and in combination with the other chambers , matches the prescribed intravenous therapy or drug regimen . the bag &# 39 ; s configuration assures that the intravenous therapy is administered in accordance with the prescribed drug regimen , thus automating the previous manual method . a choice of fluid bag configurations may be stocked so that a prescription for well known and widely accepted drug regimens may be filled by merely selecting a bag with the appropriate chamber configuration and filling it with the prescribed medications .