A variety of antibiotics treat and kill the bacterial infection chlamydia, and they include amoxicillin, azithromycin, doxycycline, erythromycin, levofloxacin and ofloxacin, according to WebMD. Some brand names for these antibiotics include Zithromax (azithromycin), Doryx and Vibramycin (doxycycline), E-Base and Erythrocin (erythromycin), Levaquin (levoflaxacin), and Floxin (oflocacin).
Doctors prescribe these antibiotics to patients who test positive for chlamydia. Any sexual partner within 60 days of the patient's positive diagnosis should also receive one of these antibiotics, explains WebMD. The type of antibiotic determines the length and effectiveness of the treatment. Different antibiotics fit patients' specific needs, which could vary because of pregnancy, breastfeeding or age.