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.
As for Oklahoma's old test, Eufinger said the time period during which the test results were good for was a problem. The syphilis testing required before marriage was good for 30 days. If you were negative on the day of the test, and a promiscuous person, it could be positive by the time of marriage, Eufinger said.