The invention relates to a closure cap for attaching to a liquid container, wherein the closure cap comprises a spout opening (11) and a receiving element (8), which together with the closure cap forms a common receiving volume for receiving at least one dispensing body, and the closure cap can be opened, thus forming an entrance (2) to the receiving volume (20) in order to enable the introduction of the at least one dispensing body into the receiving volume, wherein the receiving element (8) is permeable to a liquid in order to allow the at least one dispensing body to come into contact with the liquid, wherein a closure element (1) connected to the closure cap is provided, by means of which the entrance (2) can be sealed in a liquid-tight manner.In order to prevent the entrance of liquid into the receiving volume when no drinking process occurs, a mouthpiece (7) formed as a hollow body is arranged in the spout opening (11), which mouthpiece seals the receiving element (8) in a liquid-tight manner in a closed position and opens the receiving element (8) in an open position, so that liquid can flow through the receiving element (8), the receiving volume (20) and the mouthpiece (7).