Levitra  
   Full prescribing information from RxList.
   http://www.rxlist.com/cgi/generic3/levitra.htm

Levitra - Erectile Dysfunction Treatment  
   Official site for this erectile dysfunction medication. Includes clinical information about the drug and an online prescription form.
   http://www.levitra.com/

FDA Approves New Drug for Treatment of Erectile Dysfunction in Men  
   Press release announcing US FDA approval of Levitra.
   http://www.fda.gov/bbs/topics/ANSWERS/2003/ANS01249.html

Levitra Information  
   Extensive information for patients and health professionals.
   http://levitrainformation.com

Vardenafil - FamilyDoctor.org  
   Information for patients in English or Spanish.
   http://www.familydoctor.org/cgi-bin/multum.pl?op=GetLeaflet&id=47297&name=vardenafil

Levitra Consumer Information  
   US FDA advice on topics including use, dosage, side effects, and drug interactions.
   http://www.fda.gov/cder/consumerinfo/druginfo/levitra.htm

Health Professionals Data Sheet: Levitra (Vardenafil)  
   Detailed prescribing information from New Zealand Medicines and Medical Devices Safety Authority.
   http://www.medsafe.govt.nz/profs/Datasheet/l/Levitratab.htm

Consumer Medicine Information: Levitra  
   Advice for patients, from New Zealand Medicines and Medical Devices Safety Authority.
   http://www.medsafe.govt.nz/Consumers/cmi/l/levitra.htm