Explain Chlamydia 

A single 1 g dose of azithromycin (Zithromax) or 7 days' treatment with a tetracycline are both effective for treatment of uncomplicated urethral or cervical infection caused by Chlamydia trachomatis. Taking azithromycin after a small snack (a few crackers or cookies) improves gastrointestinal (GI) tolerance. Seven days' treatment with generic doxycycline or another tetracycline costs less, but compliance may be a problem. Ofloxacin (Floxin, and others) or levofloxacin  (Levaquin)  for 7 days are effective but expensive alter- natives; they are most useful when chlamydial infection cannot be distinguished clinically from bacterial urinary tract infection.