*Treatment of Chlamydial Infections DOI: http://dx.doi.org/10.5772/intechopen.109648*

Similar findings have been published from prospective, open-label research involving individuals with oropharyngeal chlamydia and a 7-day doxycycline regimen showed less treatment failure when compared with azithromycin single-dose treatment [60]. Urogenital *C. trachomatis* infections may be accompanied by concomitant anorectal and oropharyngeal chlamydia, which might remain asymptomatic for that reason doxycycline regimen should be chosen as the primary treatment regimen in adults and adolescents with chlamydia except in patients who are unlikely to be able to complete the 7-day doxycycline course and pregnant women. In such cases, azithromycin regimen should be considered [45, 61, 62].

Among other therapeutic options erythromycin base 500 mg, orally, four times a day for 7 days, is also an effective alternative regimen but gastrointestinal side effects are frequent and nonadherence might be observed. Fluoroquinolones are highly active against *C. trachomatis* infections and levofloxacin 500 mg, orally, once a day for 7 days or ofloxacin 200–400 mg, orally, twice a day for 7 days are other alternative medications yet the regimens are more expensive and cannot be offered during pregnancy and breastfeeding periods [43].
