Antibiotic	Initial dosage*	Maintenance dosage	Comments
Tetracycline	500 mg twice daily	250 to 500 mg daily	Take on an empty stomach to avoid chelation with calcium, iron and other polyvalent cations. Take with a large glass of water to decrease dyspepsia.
Doxycycline (Vibramycin)	100 mg twice daily	50 to 100 mg daily	Take with meals.
Minocycline (Minocin)	50 to 100 mg twice daily	50 to 100 mg daily	Take with meals.
Erythromycin	500 mg twice daily	250 to 500 mg daily	Take with meals.