Next day pill
This form of contraception is mistakenly called the "morning-after pill" even though it can actually be used up to three days after the report at risk.
Levonorgestrel is a powerful progestin that acts at various levels, yet not entirely clear, interfering, also depending on the phase of the cycle in which it is taken, on the various mechanisms that allow ovulation, fertilization, progression of the fertilized egg and its implantation in the uterus.
It consists of 2 tablets, the first to be taken as soon as possible, the second 12 hours after the first. The first tablet must be taken at least within 72 hours (but some studies indicate that there is significant efficacy even up to 120 hours) from the risk ratio. Medical prescription is required. The effectiveness is the higher the sooner the first pill is taken, varying from 95% if it is taken within 12 hours, to 80% after 48 hours.
Side effects: None relevant. In some cases sporadic, nausea and irregularity in the next cycle.
Contraindications: None. In any case, in the presence of possible contraindications, the morning after pill is preferable to a pregnancy.
The insertion of an intra uterine device is the most effective emergency contraception, with an efficacy rate close to 100%.
The IUD can be inserted within 5 days of the report at risk, although several studies indicate that it can be effective even up to 7 days later.
It has the disadvantage of requesting an expert doctor for insertion, but has the advantage of also providing a long-term contraception for the future.