Doxycycline is the preferred recommended second-line agent for the treatment of syphilis, although efficacy data from controlled trials are lacking. We compared the serological responses of patients with early syphilis treated with doxycycline with the responses of patients treated with benzathine penicillin G (BPG).
Doxycycline is used to treat infections caused by bacteria, including pneumonia and other respiratory tract infections; certain infections of the skin or eye; infections of the lymphatic, intestinal, genital, and urinary systems; and certain other infections that are spread by ticks, lice, mites, infected animals, or Dec 15, 2017
Systemic treatment They are usually prescribed for 6–12 weeks, and this can be variable, depending on the severity of the rosacea. Doxycycline 50–100 mg once daily is recommended as initial oral therapy. Further courses may be required, as inflammatory rosacea is chronic and often recurs.