Norwalk virus
| Nitazoxanide | NoV | Pyruvate inhibitor | Phase 3 | — | Human pyruvate synthase | |
| Beclabuvir | NoV | Unknown | Approved (other) | Japan | Viral RNA pol | |
| GC-376 | NoV | Viral protease inhibitor | Preclinical | — | Viral protease | |
| Mycophenolic acid | NoV | Inosine monophosphate dehydrogenase inhibitor | Preclinical | — | Human IMPDH | |
| N4-Hydroxycytidine | NoV | Ribonucleoside analog | Preclinical | — | Viral RNA pol | |
| Rupintrivir | NoV | Prevents viral replication | Preclinical | — | Viral protease | |
| Suramin | NoV | Unclear | Preclinical | — | Human (multiple) | |
| Vesatolimod | NoV | Stimulates cell-mediated immune response | Preclinical | — | Human TLR7 |