Rimantadine (brand names Forest® and Flumadine®) is an RNA synthesis inhibitor that is used as an antiviral agent in the prophylaxis and treatment of avian influenza.
Abdelwhab, El-Sayed M., and Hafez M. Hafez Control of Avian Influenza in Poultry with Antivirals and Molecular Manipulation. Epidemiology II: Theory, Research and Practice; iConcept Press: Hong Kong, China (2015)