Adult

Syphilis

  •  Bacterial infection due to Treponema pallidum subspecies pallidum
  • Transmission is by direct contact with infected lesions – sexually transmitted and mother to child transmission
  • UK Cases are predominantly GBMSM; HIV coinfection is common
  •  Notifiable infection

Steroids are indicated for cardiovascular and neurological syphilis – this should be commenced 24 hours BEFORE antibiotics are started

Potentially incubating syphilis (contacts)

Includes HIV coinfected individuals

Preferred: Benzathine penicillin G 2.4 MU IM once only

Alternative: Doxycyline 100mg po bd 14 days

Early syphilis: primary, secondary and early latent

Includes HIV coinfected individuals

Preferred:

Benzathine penicillin G 2.4 MU IM once only

Alternatives:

  • Procaine penicillin 600,000 units IM od for 10 days
  • Or Doxycycline 100mg po bd 14 days
  • Or Ceftriaxone 500mg-1g IM or IV od for 10 days
  • Or, Amoxicillin 500mg po qds + probenecid 500mg po qds for 14 days

Late latent, Cardiovascular, or Gummatous Syphilis

Includes HIV coinfected individuals

Preferred:

Benzathine penicillin G 2.4 MU IM once weekly for 3 weeks

Alternatives:

PLUS (for cardiovascular) Prednisolone 40-60mg po od for 3 days, starting 24h before antibiotics

Neurosyphilis including neurological involvement in early syphilis (optic, ontological)

Includes HIV coinfected individuals

 

** Prednisolone 40-60mg po od for 3 days, starting 24h before antibiotics

 

Preferred:

  • Procaine penicillin 1.8-2.4 MU IM od + probenecid 500mg po qds for 14 days
  • Or, Benzylpenicillin 1.8-2.4 g IV every 4 hours for 14 days

Alternatives: