Which of the following is NOT an antiviral medication that treats hepatitis?

Ciprofloxacin is an antibiotic, not an antiviral medication. It is primarily used to treat bacterial infections and does not have any effect on viral infections, including hepatitis. In contrast, lamivudine, sofosbuvir, and simeprevir are all antiviral agents specifically targeted at treating hepatitis.

Lamivudine is used for treating chronic hepatitis B, while sofosbuvir is effective against hepatitis C and is often used in combination therapies. Simeprevir is also an antiviral drug used for hepatitis C, primarily in combination with other antiviral medications. Recognizing that ciprofloxacin's classification as an antibiotic disqualifies it from being an antiviral treatment for hepatitis confirms the correctness of the answer.