Brasilia is a planned city that was built in 5 years. One of the ideas was that each apartment quadra would be self-sufficient and supported by a commercial quadra; pharmacies, supermarkets, restaurants, shops, etc. While most of this is still valid, some of the commercial quadras have evolved into specialty product quadras.
One of these is the Rua das Farmácias at SLS 102/302 in front of Hospital de Base, Asa Sul. Here you can find several pharmacies as well as shops that rent and/or sell wheelchairs, medical and rehabilitation ect.
The prices are competitive and reasonable and it is a really convenient location with heaps of options.
Click on the map below and the location will open up on the Google Map browser.