In one aspect, the present invention features a method of treating a subject infected with the Hepatitis C virus, the method comprising administering to the subject a pharmaceutical composition comprising a compound of Formula (I) at a dosage of about 10 mg to about 1500 mg, wherein the compound is selected from Formula (la), Formula (lb), and Formula (Ic), or a prodrug or pharmaceutically acceptable salt thereof to thereby treat the subject. In another aspect, the present invention features a kit comprising a pharmaceutical composition comprising the compound of Formula (I). In some embodiments, the kit further comprises an additional agent or treatment. In some embodiments, in a method described herein, the subject has been further diagnosed with an HIV infection.Cette invention se rapporte à des méthodes utiles dans le traitement d'une infection de l'hépatite.