I have a friend who is a pharmacist and she married a pharmacist and they gave pill pods as a gift for their bridal party. I thought it was pretty cool! As long as it's a pretty, not just a plastic thing. Theirs were metal with rhinestones and onyx-looking gemstones.
I personally don't think I would use a pill box. Not everyone takes medications. I feel like while favors should be useful, they should also have an element of fun attached to them. I would keep looking...
Re: shower favors
i'm giving purse hooks as favors for my bf wedding shower...