Neonatal enteroviral sepsis is a potentially fatal condition. Perinatally acquired infection and severe coagulopathy can be associated with a poor clinical outcome, and antiviral therapy is currently unavailable. Pocapavir (V-073) is an investigational drug candidate being developed for poliovirus indications, but also has variable antiviral activity against nonpolio enteroviruses. We describe the first use of pocapavir in treating a case of severe neonatal enteroviral sepsis due to Coxsackievirus B3.