Adult 500 mg as single dose daily for 3 days. Alternatively, initially 500 mg followed by 250 mg daily for a further 4 days. 
Uncomplicated genital infection caused by Chlamydia trachomatis & chancroid 1 g as single dose. 
Uncomplicated gonorrhea 2 g as single dose. 
Granuloma inguinale Initially 1 g followed by 500 mg daily, or 1 g once wkly for at least 3 wk, until all lesions have completely healed. 
Prophylaxis of disseminated MAC infection 1.2 g once wkly. 
Treatment or secondary prophylaxis 500 mg once daily in combination w/ other antimycobacterials. 
Mild to moderate typhoid caused by multidrug-resistant strain 500 mg once daily for 7 days.