<unk>  (INN, sold under the trade name Flumadine) is an orally administered antiviral drug used to treat, and in rare cases prevent, influenzavirus A infection. When taken within one to two days of developing symptoms,<unk>  can shorten the duration and moderate the severity of influenza.<unk>  can mitigate symptoms, including fever. Both<unk>  and the similar drug amantadine are derivates of adamantane.<unk>  is found to be more effective than amantadine because when used the patient displays fewer symptoms.<unk>  was approved by the Food and Drug Administration (FDA) in 1994.<unk>  was approved for medical use in 1993. Seasonal H3N2 and 2009 pandemic flu samples tested have shown resistance to<unk> , and it is no longer recommended to prescribe for treatment of the flu.
Rimantadine
Amantadine
Quifenadine
Rupatadine
Alcaftadine
Loratadine
Oseltamivir
Tecovirimat