The verb Refrain takes “from” as a preposition. It is used as “refrain from”.
We refrained from talking until we knew that it was safe.
The sign on the wall said “Please refrain from smoking.”
The preposition “from” is used after the verb “Refrain”.
Why we should refrain from drinking alcohol while taking probiotics ?
Should Christian leaders refrain from drinking in public ?
If you want to lose weight, you should refrain from large amounts of junk food.
Because I cannot refrain from eating meat, I would not make a good vegetarian.
Refrain takes “from” as a preposition in a sentence.
India and China agree to stop sending more troops to frontline, refrain from changing situation on LAC.