A device for administering liquids to an animal, in particular therapeutic agents, comprises a vessel (10； 50； 70； 100； 200) defining a collection chamber (11) therein. The following components are provided on the vessel: an inlet opening (13) for the therapeutic agent into the collection chamber, a first outlet duct (14) connected to a cannula element (3) which is prearranged so as to be introduced into the animal, the opening (14a) of the first outlet duct into the collection chamber being provided at a distance from a base (16) of the vessel, a second outlet duct (15) connected to a cannula element (3) which is prearranged so as to be introduced into the animal, the opening (15a) of the second outlet duct being provided substantially at the base of the vessel, and first shut-off means (17) for selectively shutting off the second outlet duct (15), the means being provided for preventing or allowing the flow from the collection chamber through the second outlet duct.
