Single Biggest Cancer Dictionary in the World

What is

active pharmaceutical ingredient

?

Pronunciation: /ˈæktɪv ˌfɑrməˈsutɪkəl ˌɪnˈgridiənt/

active pharmaceutical ingredient

Definition

The main ingredient in a medicine that causes the desired effect of the medicine. Some medicines contain more than one active pharmaceutical ingredient that act in different ways in the body. Also called API, drug substance, and pharmacologic substance.