A tablet cartridge for use in a medication dispensing apparatus, the tablet cartridge comprising: a rotor configured to have a plurality of guide-teeth protruding at regular intervals along a circumference of the rotor, and have tablet insertion grooves formed between the guide-teeth; a tablet stopper disposed to close a top of one of the tablet insertion grooves; a case configured to include a container to accommodate the tablets, a rotor housing portion at a lower part of the container to house the rotor, a dispensing opening formed at a position on a lower portion of the rotor housing portion, corresponding to a position of the tablet stopper, and a stopper insertion hole of a length that allows for the tablet stopper to adjust its height while being inserted into the stopper insertion hole; and a stopper cover coupled to the case to close the stopper insertion hole, and have the tablet stopper mounted thereon at an adjusted height, characterised in that the tablet stopper comprises a stopper body to close the top of one of the tablet insertion grooves, first extension ends extending from each side of the stopper body toward the stopper cover and second extension ends bent inwardly to approach each other and extending from the respective first extension ends, the first extension end and the second extension end being coupled to form an 'L' shape, wherein the stopper cover comprises a cover body coupled with the case to close and open the stopper insertion hole and a height adjustment unit formed along an inner surface of the cover body to guide height adjustment of the first and second extension ends and secure the first and second extension ends. a rotor configured to have a plurality of guide-teeth protruding at regular intervals along a circumference of the rotor, and have tablet insertion grooves formed between the guide-teeth; a tablet stopper disposed to close a top of one of the tablet insertion grooves; a case configured to include a container to accommodate the tablets, a rotor housing portion at a lower part of the container to house the rotor, a dispensing opening formed at a position on a lower portion of the rotor housing portion, corresponding to a position of the tablet stopper, and a stopper insertion hole of a length that allows for the tablet stopper to adjust its height while being inserted into the stopper insertion hole; and a stopper cover coupled to the case to close the stopper insertion hole, and have the tablet stopper mounted thereon at an adjusted height, characterised in that the tablet stopper comprises a stopper body to close the top of one of the tablet insertion grooves, first extension ends extending from each side of the stopper body toward the stopper cover and second extension ends bent inwardly to approach each other and extending from the respective first extension ends, the first extension end and the second extension end being coupled to form an 'L' shape, wherein the stopper cover comprises a cover body coupled with the case to close and open the stopper insertion hole and a height adjustment unit formed along an inner surface of the cover body to guide height adjustment of the first and second extension ends and secure the first and second extension ends.