原げん薬やくげんやくMeanings1nounactive pharmaceutical ingredient; APIpharmacologyTechnical term used in pharmaceutical contexts to refer to the biologically active component of a drug.この医い薬やく品ひんの原げん薬やくは海かい外がいから輸ゆ入にゅうしている。The active pharmaceutical ingredient for this drug is imported from overseas.
