http://www.uptodate.com/contents/penciclovir-drug-information?source=related_link
http://www.micromedexsolutions.com/micromedex2/librarian/ND_T/evidencexpert/ND_PR/evidencexpert/CS/826A13/ND_AppProduct/evidencexpert/DUPLICATIONSHIELDSYNC/DFA66C/ND_PG/evidencexpert/ND_B/evidencexpert/ND_P/evidencexpert/PFActionId/evidencexpert.GoToDashboard?docId=924057&contentSetId=100&title=Penciclovir&servicesTitle=Penciclovir&brandName=Denavir#
http://denavir.com/media/1045/denavir_pi.pdf
