A 29-year-old male asked:
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is doxycycline as effective towards treating syphilis as the penicillin injections?

1 doctor answer
Dr. Hunter Handsfield
52 years experience Infectious Disease
Yes, but unreliable: Doxycycline is very effective against syphilis, but must be taken for a full 2 to 4 weeks, depending on syphilis stage. Many people have trouble sticking to treatmet that long without missing many doses, therefore doxycycline is not normally recommended in treating syphilis. However, it is used sometimes in people who are allergic to penicillin.
Answered on Apr 27, 2020

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Related questions:

A male asked:
Dr. Hunter Handsfield
52 years experience Infectious Disease
Just as effective: Yes, doxycycline is just as effective as penicillin, but you must take all of the pills more or less on time. You're probably non-infectious after a f ... Read More
A 35-year-old male asked:
Dr. Hunter Handsfield
52 years experience Infectious Disease
Yes indeed: This is standard treatment for penicillin-allergic patients with syphilis and works very well, but must not miss many doses. If past allergy was not s ... Read More
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1 thank
A 28-year-old male asked:
Dr. Ed Friedlander
43 years experience Pathology
No way to tell: These are syphilis tests, not HIV tests. Please do yourself a double favor: (1) get a good HIV test now from your physician; (2) be a responsible love ... Read More
A 31-year-old male asked:
Dr. Jovita Anyanwu
29 years experience Internal Medicine
Not true: open fresh sores will remain infectious. Treatment should be completed and lesions healed to be considered non infectious. See ID specialist

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