Mononucleosis is a viral infection causing fevers, sore throat, and swollen lymph glands, especially in the neck. It is typically caused by the Epstein-Barr virus (EBV), but can also be caused by other organisms such as the cytomegalovirus (CMV). Both viruses are members of the herpesvirus family. Below you may find medications used to treat or help with Mononucleosis. More about Mononucleosis