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.
This is because consuming the wrong dosage may have serious side effects, and it can be extremely harmful to your body. The correct dosage is to have one tablet of plan b as soon as possible after you had the unprotected sex. The time duration is to consume it within the 72 hours after unprotected intercourse.