Antibiotic	Age range	Dosage and route	Duration
Rifampin* (Rifadin)	Children younger than one month	5 mg per kg orally every 12 hours	2 days
	Children older than one month	10 mg per kg (up to 600 mg) orally every 12 hours	2 days
	Adults	600 mg orally every 12 hours	2 days
Ciprofloxacin† (Cipro)	Adults	500 mg orally	Single dose
Ceftriaxone (Rocephin)	Patients younger than 15 years	125 mg intramuscularly	Single dose
	Patients 15 years and older	250 mg intramuscularly	Single dose