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Active Ingredient

API

定義

The component of a drug product that produces the intended therapeutic effect. The active pharmaceutical ingredient (API) is what the drug does — everything else in the formulation (binders, fillers, coatings) are inactive ingredients (excipients).

例

In Tylenol Extra Strength, the active ingredient is acetaminophen 500 mg per tablet. The remaining mass consists of excipients.

関連用語

ガイドでの言及