Hi Laurie,
Welcome to the Disney Parks Moms Panel and thank you for asking us a question!
There are several pharmacies located off property that are a short taxi or Uber ride away. I’d recommend using that option, especially if you’d like to shop at a specific store (such as CVS or Walgreens).
If, however, you’d prefer to have your family’s medications delivered straight to
Disney’s Polynesian Village Resort, there is a tourist prescription service based out of Celebration called Turner Drugs that seems to offer deliver to any Walt Disney World Resort hotel, for a fee. I’ve never used this service, but if you’re looking for a delivery service, they seem to be your best option. You can Google them for more information, and don't forget to check out their recent reviews (on a service such as Yelp) in order to make sure that their services meet your family's needs.
I hope my answer helps you plan your family’s upcoming visit to Walt Disney World Resort. Please don’t hesitate to come back and see us if you have any other questions in order to help ensure a happy and safe vacation for everyone!
Have a Magical Day,
Lynne