Antibiotic	Dosage	Comments
Ciprofloxacin (Cipro)	500 mg twice daily for one to three days	Other quinolones (e.g., ofloxacin [Floxin], norfloxacin [Noroxin], and levofloxacin [Levaquin]) are presumed to be effective as well.
Rifaximin (Xifaxan)	200 mg three times daily for three days	Not effective in persons with dysentery
Azithromycin (Zithromax)	In adults: 500 mg daily for one to three days or 1,000 mg in a single dose32	Antibiotic of choice in children and pregnant women, and for quinolone-resistant Campylobacter16
	In children: 10 mg per kg daily for three days37