[Problem] To provide an injection-mixing management unit, an injection-mixing device and an injection-mixing management program capable of aiding in the efficient use of a drug, a predetermined amount of which is stored inside a drug container. [Solution] The injection-mixing management device: determines whether or not a drug that is indicated in preparation data remains in a drug container, which is to be used in an injection-mixing process for injecting the drug from one or multiple drug containers into an infusion container, the drug containers comprising a predetermined amount of the drug; and preferentially displays, on a display means, preparation data that includes a drug of the same kind as a residual drug, which has been determined to remain in the drug container in the previous injection-mixing process, in the prescribed drugs, said preparation data being selected from among candidates for the preparation data that is to serve as the object of the injection-mixing process.
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