EllaOne is one of the most recent discoveries in the domain of emergency contraception. These pills are new and very innovative. They can be taken up to 5 days after unprotected sexual intercourse. It has a 98% success rate and comes very handy if the condom has torn off during sexual intercourse. It can be even taken if you have not used any sort of contraception. Ulipristal acetate is the active ingredient in ellaOne.