Anti-Zoster Drug Prevents Shingles in Lupus Patients on Anifrolumab The antiviral drug valaciclovir (Valtrex), given prophylactically, kept patients with SLE under treatment with anifrolumab (Saphnelo) from having herpes zoster attacks, researchers said, offering a potential… https://t.co/zebERdPfzV https://t.co/MOIjbhcWSa