France Hotels
Advice on getting medical attention in Paris. The site also contains details of local hospitals, all-night pharmacies and emergency services.
http://www.francehotels.us/health.htm

Paris Tourist Office
A list of 24 hour pharmacies around Paris.
http://www.paris-touristoffice.com/va2/sejour/visites/pharmaci.html

Parisinfo.com
Late-opening chemists.
http://www.parisinfo.com/guide_paris/rub6826.html&id_article=7771

Yahoo.com
Contains the details of doctors, dentists, emergency rooms and 24 hour pharmacies you can contact in an emergency.
http://travel.yahoo.com/p-travelguide-843130-paris_emergencies-i