Antibiotics are an effective treatment for syphilis. The antibiotic of choice is penicillin. The dose and how it’s given (into a muscle or into a vein) depend on the stage of syphilis. Doxycycline may be used as an alternative treatment in individuals who are allergic to penicillin.
A single injection of penicilin can stop the disease form progressing if you’ve been infected for less than a year. If you’ve had syphilis for a longer than a year, you may need additional doses.
Treatment to follow up and test
After you’re treated for syphilis, your doctor will ask you to:
- Have periodic blood tests and exams to make sure you’re responding to the usual dosage of penicillin.
- Avoid sexual contact until the treatment is completed and blood tests indicate the infection has been cured.
- Notify your sex partners so that they can be tested and get treatment if necessary.
- Be tested for HIV infection.