A drug dispensing device, which is configured to separately dispense one dose of drugs based on prescription data, the drug dispensing device comprising: an input device configured to receive input of manufacturing information on a drug to be dispensed given by a worker; a dispensing unit including a tray, which is divided into a plurality of cells, to each of which one dose of the drugs is to be introduced; a plurality of tablet cassettes each configured to store tablets; a tablet supply unit configured to automatically dispense the tablets to the tray from each of the plurality of tablet cassettes (11, 12) in accordance with the prescription data; a monitor configured to display a screen including a manufacturing information input field (904, 905) for supporting work of inputting the manufacturing information on a drug to be dispensed by the worker based on the prescription data and a controller, characterized in that the controller is configured to: when a drug other than a tablet to be dispensed from the tablet cassette is to be manually dispensed to the tray of the a dispensing unit, display, on the monitor, the screen including the manufacturing information input field (904, 905) for supporting, to receive the input of the manufacturing information for each drug to be dispensed, when one of the plurality of tablet cassettes is to be refilled with tablets, display, on the monitor, the screen including the manufacturing information input field (904, 905) for supporting, to receive the input of the manufacturing information, and store, into a storage, the manufacturing information on a drug manually dispensed in work of dispensing a drug to one patient, in association with information for identifying the one patient when the controller determines that the manual-dispensing work is complete for all drugs to be manually dispensed. an input device configured to receive input of manufacturing information on a drug to be dispensed given by a worker; a dispensing unit including a tray, which is divided into a plurality of cells, to each of which one dose of the drugs is to be introduced; a plurality of tablet cassettes each configured to store tablets; a tablet supply unit configured to automatically dispense the tablets to the tray from each of the plurality of tablet cassettes (11, 12) in accordance with the prescription data; a monitor configured to display a screen including a manufacturing information input field (904, 905) for supporting work of inputting the manufacturing information on a drug to be dispensed by the worker based on the prescription data and a controller, characterized in that the controller is configured to: when a drug other than a tablet to be dispensed from the tablet cassette is to be manually dispensed to the tray of the a dispensing unit, display, on the monitor, the screen including the manufacturing information input field (904, 905) for supporting, to receive the input of the manufacturing information for each drug to be dispensed, when one of the plurality of tablet cassettes is to be refilled with tablets, display, on the monitor, the screen including the manufacturing information input field (904, 905) for supporting, to receive the input of the manufacturing information, and store, into a storage, the manufacturing information on a drug manually dispensed in work of dispensing a drug to one patient, in association with information for identifying the one patient when the controller determines that the manual-dispensing work is complete for all drugs to be manually dispensed. when a drug other than a tablet to be dispensed from the tablet cassette is to be manually dispensed to the tray of the a dispensing unit, display, on the monitor, the screen including the manufacturing information input field (904, 905) for supporting, to receive the input of the manufacturing information for each drug to be dispensed, when one of the plurality of tablet cassettes is to be refilled with tablets, display, on the monitor, the screen including the manufacturing information input field (904, 905) for supporting, to receive the input of the manufacturing information, and store, into a storage, the manufacturing information on a drug manually dispensed in work of dispensing a drug to one patient, in association with information for identifying the one patient when the controller determines that the manual-dispensing work is complete for all drugs to be manually dispensed.