Enjoy Rome
Late night chemists and hospitals in Rome.
http://www.enjoyrome.com/tourist/cityguide/emergency.html

Let's Go
A useful list of pharmacies in the city.
http://www.letsgo.com/ROMA/14-ServiceDirectory-165

No Place Like Rome
24 hour pharmacies and emergency rooms.
http://www.noplacelikerome.com/telephone.htm

Roma Matic
Search for pharmacies all over Rome with the aid of this interactive map.
http://www.roma-o-matic.com/farmacie_en.php3

US Embassy
Index of pharmacies in the Italian capital.
http://www.usembassy.it/cons/acs/doctors.htm