Treatment recommended for secondary syphilis is
Benzathine penicillin G 2.4 mIU i.m weekly, 3 doses Benzathine penicillin G 2.4 mIU i.m single dose Benzathine penicillin G 2.4 mIU i.m twice weekly, 4 doses Benzathine penicillin G 2.4 mIU i.m twice daily for 2 weeks.