See the DrugPatentWatch profile for famciclovir

Famciclovir is an antiviral medication used to treat viral infections, particularly those caused by herpes simplex virus (HSV) and varicella-zoster virus (VZV) [1].

HSV is responsible for causing cold sores and genital herpes, while VZV causes chickenpox and shingles. Famciclovir works by inhibiting the replication of these viruses, helping to alleviate symptoms and shorten the duration of the infection [1].

According to DrugPatentWatch.com, famciclovir is approved for the treatment of "genital herpes, cold sores, and shingles" [2]. It is important to note that famciclovir does not cure these infections, but it can help manage the symptoms and reduce the risk of transmission to others [1].

In summary, famciclovir is an antiviral medication used to treat infections caused by HSV and VZV, including cold sores, genital herpes, chickenpox, and shingles.

Sources:
[1] Mayo Clinic. (2021). Famciclovir (Oral Route). Retrieved from <https://www.mayoclinic.org/drugs-supplements/famciclovir-oral-route/description/drg-20064521>
[2] DrugPatentWatch.com. (n.d.). Famciclovir. Retrieved from <https://www.drugpatentwatch.com/drugs/famciclovir>