Category	Initial therapy (oral)†		Duration
Adults*	Ciprofloxacin, 500 mg twice daily		60 days‡
		or
	Doxycycline, 100 mg twice daily
Children*	Ciprofloxacin, 10 to 15 mg per kg every 12 hours (not to exceed 1 g per day)†		60 days‡
		or
	Doxycycline§: >8 years and >45 kg: 100 mg every 12 hours; >8 years and <=45 kg: 2.2 mg per kg every 12 hours; <=8 years: 2.2 mg per kg every 12 hours
Pregnant women*∥	Ciprofloxacin, 500 mg twice daily		60 days‡
		or
	Doxycycline, 100 mg twice daily
Immunocompromised persons*	Same for nonimmunocompromised persons and children		60 days‡