Denavir™ (penciclovir cream 1%), a new antiviral treatment, is marketed by SmithKline Beecham Consumer Healthcare. It is proven to speed the healing of recurrent cold sores (herpes labialis), and is the only prescription medicine cleared for marketing by the U.S. Food and Drug Administration for treating cold sores in healthy adult patients. Denavir™ works by blocking the virus in cold sores by inhibiting viral DNA replication in herpes simplex virus-infected cells. It is said to heal cold sores in half the time as untreated sores. For company details, visit http://www.sb.com or circle the number below.