The ornamental design for a liquidmedicationdispenser, as shown and described.
FIG. 1 is a perspective view of a liquid medication dispenser showing our new design;
FIG. 2 is left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
The dashed lines immediately adjacent to the claimed areas in the views represent the boundaries of the claimed design and form no part of the claimed design.