Dosing regiments of celgosivir for the treatment of dengue

A method of treating a dengue virus (DENV) infection in a human subject, comprising:

• a) administering to the human subject an initial dose of about 100 to about 400 mg of a compound of Formula (II), or a pharmaceutical composition comprising a compound of Formula (II), within from about onset of fever to about 72 hours of fever onset due to dengue infection;
• and
• b) administering to the human subject a dose of about 150 to about 400 mg of a compound of Formula (II), or a pharmaceutical composition comprising a compound of Formula (II), at intervals of about 24 hours until there is an improvement in the infection or between from about 1 day to about 10 days, Formula (II) having the following structure,
• or a pharmaceutically acceptable salt thereof.