Adult 200 mg on 1st day (100 mg every 12 hr) followed by maintenance dose of 100 mg/day once daily.
Management of more severe infections (chronic UTI) 100 mg every 12 hr.
STD (chlamydial cervicitis) 100 mg every 12 hr for 7 days.
Pelvic inflammatory disease in ambulatory patient Cefoxitin 2 g IM or oral amoxicillin 3 g or oral ampicillin 3.5 mg or aq procaine penicillin G IM 4.8 MIU at 2 sites (accompanied by oral probenecid 1 g, followed by oral doxycycline 100 mg daily), or ceftriaxone 250 mg IM in 10-14 days.
Early syphilis for non-pregnant patient allergic to penicillin 100 mg every 12 hr for 14 days.
Syphilis of >1 yr duration in patient allergic to penicillin 100 mg every 12 hr for 4 wk.
Uncomplicated gonococcal infections 100 mg every 12 hr or 300 mg stat followed in 1 hr by 2nd 300 mg.
Uncomplicated urethral, endocervical or rectal infection 100 mg every 12 hr for 7 days.
Non-gonococcal urethritis 100 mg every 12 hr for 7 days.
Acute epididymo-orchitis 100 mg every 12 hr for at least 10 days.
Acne vulgaris 100 mg once daily for 12 wk.
Prophylaxis of traveller's diarrhea 200 mg on the 1st day of travel (as single dose or 100 mg every 12 hr) followed by 100 mg daily throughout stay in the area.
Cholera 300 mg as single dose (treatment & prophylaxis).
Leptospirosis Treatment: 100 mg every 12 hr for 7 days; prophylaxis: 200 mg on wkly basis throughout stay in the area & 200 mg upon completion of the trip.
Tick & louse-borne relapsing fevers & louse-borne typhus Single dose of 100 or 200 mg depending on severity.
Prophylaxis of scrub typhus 200 mg as single dose.
Chloroquine-resistant falciparum malaria 200 mg daily for at least 7 days.
Prophylaxis of malaria 100 mg daily. Start prophylaxis 1-2 days before travel to malarious areas. Continue daily during travel in these areas & 4 wk after leaving said areas.
Refractory periodontitis in adults & periodontal abscess (if allergic to β-lactam) 100 mg every 12 hr for 7 days.
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