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.
What To Think About. 1  If a chlamydia infection is suspected, do not have sexual intercourse until the test results have come back. 2  If you have a chlamydia infection, do not have sexual intercourse for 7 days after the start of treatment. If a chlamydia infection is suspected, do not have sexual intercourse until the test results have come back. 2  If you have a chlamydia infection, do not have sexual intercourse for 7 days after the start of treatment.