score:4
The airport has a very good homepage where you can get a list of restaurants, filtered by areas:
https://yow.ca/en/eat-drink-and-shop/restaurants
The same applies for shops:
https://yow.ca/en/eat-drink-and-shop/shops
It depends whether you fly to Canada/USA/any other country, but there are sit down restaurants available, but no pharmacy, even pre security. It could be that other shops sell the most important pharmacy products though.
Upvote:2
You have to check out this link
To sum up what is on that page: Senate Chambers Bar, Harveys, Grab & Go, DArcy McGees, Byward Taps, Booster Juice and Bytown Marche.