When can you take the morning after pill. The MAP is successful in around 85 to 89 of cases whereas birth control is between 97 and 99 effective. Some herbs such as St.
Firstly its not as effective at preventing pregnancy as proper birth control. You should take the morning-after pill if any of these happens to you. - taken as soon as possible after unprotected sex. Its ideal to take Plan B One-Step within 72 hours thats three days of having unprotected sex. Without knowing the nature of the reaction I would. Johns wort and barbiturates can increase liver enzymes and reduce the effectiveness of the morning after pill Orbuch added.
However keep in mind that the morning after pill is not recommended for and has not been tested for regular birth control use.
Emergency contraception is a safe and effective way to prevent pregnancy up to 5 days after sex. Emergency contraception is a safe and effective way to prevent pregnancy up to 5 days after sex. You can take it up to five days. You can use the morning-after pill whenever you need to. - Ideally you should take the pills within 24 hours of having unprotected intercourse but it can work up to 72 hours later. The morning after pill works by delaying ovulation which means that no egg will be released and any remaining sperm will have nothing to fertilise.