chemist's
- drugstore - pharmacy
‘chemist’s'
In Britain, a chemist's or chemist is a shop where you can buy medicine, cosmetics, and some household items.
She bought a couple of bottles of vitamin tablets at the chemist's.
He bought the perfume at the chemist in St James's Arcade.
‘drugstore’
In the United States, a shop where you can buy medicine and cosmetics is called a drugstore. In some drugstores, you can also buy simple meals and snacks.
‘pharmacy’
A pharmacy is the place within a chemist's or drugstore, or within a supermarket or other business, where you can get prescription drugs.
Check in the pharmacy section of the drugstore.
In Britain, a chemist's is often referred to as a pharmacy.