Which agent among the following is NOT used to treat Herpes infections?

Which agent among the following is NOT used to treat Herpes infections?

• A. Trifluridine
• B. Ganciclovir
• C. Ribavirin
• D. Valacyclovir

Answer: (C)

Herpes infections are treated with drugs that specifically disrupt viral DNA replication. These are nucleoside analogs that get activated inside infected cells and then inhibit viral DNA polymerase. Trifluridine is a topical antiviral used for ocular herpes; it’s a thymidine analog that blocks viral DNA synthesis directly in the eye. Ganciclovir is another nucleoside analog effective against HSV and CMV, activated by viral kinases, and used for systemic HSV and CMV disease. Valacyclovir is an oral prodrug of acyclovir, increasing bioavailability and used for various HSV infections. Ribavirin, on the other hand, works mainly against RNA viruses and has a different mechanism—inhibiting inosine monophosphate dehydrogenase and causing RNA mutagenesis. It is not used to treat herpes viruses, which are DNA viruses, so it’s not part of standard herpes therapy.

Herpes infections are treated with drugs that specifically disrupt viral DNA replication. These are nucleoside analogs that get activated inside infected cells and then inhibit viral DNA polymerase.

Trifluridine is a topical antiviral used for ocular herpes; it’s a thymidine analog that blocks viral DNA synthesis directly in the eye. Ganciclovir is another nucleoside analog effective against HSV and CMV, activated by viral kinases, and used for systemic HSV and CMV disease. Valacyclovir is an oral prodrug of acyclovir, increasing bioavailability and used for various HSV infections.

Ribavirin, on the other hand, works mainly against RNA viruses and has a different mechanism—inhibiting inosine monophosphate dehydrogenase and causing RNA mutagenesis. It is not used to treat herpes viruses, which are DNA viruses, so it’s not part of standard herpes therapy.