Chlamydia infection medical therapy

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Medical Therapy

Chlamydia trachomatis inclusion bodies (brown) in a McCoy cell culture.

C. trachomatis infection can be effectively cured with antibiotics once it is detected. Current Centers for Disease Control guidelines provide for the following treatments:

• Azithromycin 1 gram oral as a single dose, or
• Doxycycline 100 milligrams twice daily for seven days.
• Tetracycline
• Erythromycin

Untested Treatments

• Ciprofloxacin 500 milligrams twice daily for 3 days. (Although this is not an approved method of treatment, as it is shown to be ineffective and may simply delay symptoms.)

β-lactams are not suitable drugs for the treatment of chlamydia. While they have the ability to halt growth of the organism (i.e. are microbistatic), these antibiotics do not eliminate the bacteria. Once treatment is stopped, the bacteria will begin to grow once more. (See below for Persistence.)