5-FU injection and topical even in small doses cause both acute central nervous system (CNS) damage and progressively worsening delayed degeneration of the CNS in mice. This latter effect is caused by 5-FU-induced damage to the oligodendrocytes that produce the insulating myelin sheaths.
Home > Sexually transmitted infections > Syphilis > After treatment for syphilis. It is strongly advised that you do not have any sexual intercourse; including vaginal; anal or oral sex until you and your partner(s) have both finished the treatment and any follow-up treatment.
When a person has a syphilis infection, they are more likely to acquire HIV from an infected sexual partner. Syphilis can increase the chances of getting HIV by 2- to 3- fold. 2 One study showed a 4-fold increase in the chance of acquiring HIV in men who have sex with men and infected with syphilis. 3.n the early latent period, no symptoms may occur, but the infection is still present in the body. By this time, the infection has spread to many different parts of the body. Without treatment, the syphilis infection may progress to late latent syphilis, also known as tertiary syphilis.