Question: what is the difference between acyclovir valacyclovir and famciclovir?
Answer: Famvir is active against the same viruses as acyclovir but has a longer duration of action so it can be taken fewer times each day. Famvir does not cure or stop the spread of herpes infections. Famvir relieves pain, burning, itching, and tingling, and also heals and prevents sores associated with herpes infections.