This technology relates to an information processing device and method, as well as to a program, making it possible to obtain higher-probability information pertaining to taking medicines. An extraction unit extracts a prescription date and the number of prescription days for prescription drugs from medical prescription information recorded in a recording unit. When, among the prescription drugs, there are prescription drugs that have the same prescription date but a different number of prescription days, an operation unit performs division on the basis of the numbers of prescription days. When the result of the division satisfies a specific condition, the operation unit regards the prescription drug as a persistent-effect drug. A medicine-taking-schedule-generation unit regards the number of prescription days of the sustained-action drug as the number of prescription days of the other prescription drug that was prescribed on the same day is this sustained-action drug; and generates, from this number of prescription days and prescription date, medicine-taking schedule information indicating the medicine-taking schedule of the sustained-action drug. This technology can be applied to an information processing device.