1- penicillin or doxy2- pen or doxy3 pen for 14 days OR ceft 14 days June 22, 2017 mfadmin Medicine Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review. 1- penicillin or doxy2- pen or doxy3 pen for 14 days OR ceft 14 days tx for stages of syphillis