My advice is for you to speak with your health care provider(s) about this, and discuss whther to stop taking the
Famvir. The main reason for suppressive
treatment of genital herpes is to prevent transmission to people who are not yet infected; or to preven frequent outbreaks. If either of you starts having frequent outbreaks after the drug is stopped, he or she can restart it. But it definitely isn't needed to prevent transmission to each other.