Final answer:
The commonly prescribed antibiotics for chlamydia are doxycycline 100mg twice daily for 7 days and azithromycin 1g as a single dose, aligning with CDC guidelines. A two-drug regimen is recommended when testing doesn't differentiate chlamydia from gonorrhea and to combat antibiotic resistance.
Step-by-step explanation:
In the management of chlamydia infection, the commonly prescribed antibiotic regimens include doxycycline 100mg taken twice daily for 7 days, or azithromycin 1g as a single dose. These recommendations are in line with the guidelines provided by the Centers for Disease Control and Prevention (CDC). Other alternative options for treating chlamydia include erythromycin, levofloxacin, and ofloxacin, though these are not the first-line treatments. It is also notable that because N. gonorrhoeae and C. trachomatis often occur together, a two-drug regimen is recommended to cover both pathogens, particularly in cases where testing to differentiate the two is not available. This also helps address the issue of antibiotic resistance that can be present, particularly with N. gonorrhoeae, which has displayed resistance to certain antibiotics like fluoroquinolones.