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.
How soon after unprotected sex can I do a pregnancy test? If you have irregular period or are not sure when you ovulated, you can do a urine home pregnancy test 14 days after you last had unprotected sex. However for accuracy of result, it is recommended to do the test 21 days after intercourse.