====== 活性成分 Active Ingredient ======

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**活性成分**：又称**有效成分**，是指在诊断、治愈、缓解、治疗或预防疾病方面具有药理活性或其他直接作用的成分，或影响人或动物身体结构或任何功能的成分。

An **active ingredient** is any component that provides pharmacological activity or other direct effect in the diagnosis, cure, mitigation, treatment, or prevention of disease, or to affect the structure or any function of the body of man or animals.(([[https://www.fda.gov/drugs/drug-approvals-and-databases/drugsfda-glossary-terms#A|www.FDA.gov]]))