IPA: //ˈproʊdrʌg//
KK: /ˈproʊdrʌg/
A substance that is not active as a drug itself but is converted into an active form in the body through metabolic processes.
The new medication is a prodrug that becomes effective after it is metabolized in the liver.
Prodrug → It is formed from "pro-" (meaning for or in favor of) and "drug" (from Old French *drogue*, meaning a substance used for medicinal purposes). The term "prodrug" refers to a medication that is administered in an inactive form and is converted into an active form within the body.
Think of 'pro-' meaning for or in favor of something, and 'drug' as a medicinal substance. A prodrug is a substance that is meant to work for you after it becomes active.
No commonly confused words.