English to Romanian Medical Medical: Pharmaceuticals Chemistry

Buna ziua,

As avea nevoie de ajutor pentru traducerea cuvantului "nonnucleoside" in limba romana.
Acesta imi apare in urmatorul context: "The tricyclic antiviral drugs constitute a small, but unique part of a diverse class of nonnucleoside therapeutic agents that are effective in the prophylaxis and treatment of influenza A virus infections. Amantadine (AT) is clinically used for the treatment of influenzaAvirus infections and Parkinsonism [1]. Memantine (MT) and rimantadine (RT) are derivatives of AT.MTis used for the treatment of Alzheimer’s disease [2] andRT for the treatment of the infections resulting from influenza A virus [3]."

Va multumesc anticipat pentru orice ajutor acordat!