The drug works in a similar fashion to the controversial abortion drug known as RU-486.
Many anti-abortion groups oppose wider availability of Plan B because they see it as an abortion drug.
In 2012, a woman who self-administered an abortion drug when 39 weeks pregnant was convicted of unlawful abortion under the 1861 Act.
But most of the questions focused on the abortion drug.
It hopes to undermine the teaching of abortion procedures at medical schools and to ban abortion drugs like RU-486.
Because it was not developed specifically as an abortion drug, company officials said, its optimum dose and its effectiveness in producing abortions are unknown.
Abortion opponents denounce it as an abortion drug.
Reached at home after taking both abortion drugs, the woman said she felt fine.
Another would have prohibited the Food and Drug Administration from approving abortion drugs like RU-486.
It works in a manner similar to the abortion drug known as RU-486.
