How Next Choice® Works
Mechanism of action
Next Choice is thought to work by preventing ovulation, preventing fertilization (by altering tubal transport of sperm and/or egg), and by inhibiting implantation (by altering the endometrium). It works similar to a birth control pill.
When used as directed, Next Choice reduces a woman's pregnancy risk by as much as 89% when taken within 72 hours (3 days) of unprotected sex, sexual attack, or a known or suspected contraceptive failure. A study demonstrated even greater efficacy when taken within 24 hours.3,4
It is not effective, however, once implantation begins.
Next Choice, when taken as directed, will not disrupt or affect an existing pregnancy.
