This https://www.webmd.com/drugs/index-drugs.aspx must be used regularly to be effective.
https://www.webmd.com/drugs/2/drug-167459/incruse-ellipta-inhalation/details
I always get confused by the use of "to be". I know it's basic use in various forms-is,am,are, have, was , were... but it's literal form "to be" always find it hard to understand.
Jigneshbharati This medication must be used regularly to be effective. = This medication must be used regularly in order to be effective.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
JigneshbharatiThis medication must be used regularly to be effective.
= This medication must be used regularly in order to be effective.