President Barack Obama says that he is "very comfortable" with the controversial new ruling from the U.S. Food and Drug Administration that permits females ages 15 and over to purchase the morning-after pill without a prescription.

"The rule that's been put forward by the FDA, Secretary Sebelius has reviewed, she's comfortable with it---I'm comfortable with it," Obama told reporters Thursday during a press conference in Mexico.

"I'm very comfortable with the decision they've made right now based on solid, scientific evidence."

The FDA announced the new ruling Tuesday, stating the agency's decision to approve an application submitted by Teva Women's Health, Inc. to market Plan B One-Step emergency contraceptive without a prescription to women 15 years of age and older.

The company first submitted an application in 2011 in an attempt to get the public health agency to allow any woman to purchase the emergency contraceptive, regardless of age.

This most recent ruling is an approval of an amended application, with the addition of the 15-year-old age requirement.

"Research has shown that access to emergency contraceptive products has the potential to further decrease the rate of unintended pregnancies in the United States," said Dr. Margaret A. Hamburg, FDA commissioner.

"The data reviewed by the agency demonstrated that women 15 years of age and older were able to understand how Plan B One-Step works, how to use it properly, and that it does not prevent the transmission of a sexually transmitted disease."

Despite the FDA ruling, there is still pending litigation based on a ruling from a federal judge made last month.

"On April 5, 2013, a federal judge in New York ordered the FDA to grant a 2001 citizen's petition to the agency that sought to allow over-the-counter access to Plan B (a two dose levonorgestrol product) for women of all ages and/or make Plan B One-Step available without age or point of sale restrictions," the FDA explained in a press release.

"However, Teva's application to market Plan B One-Step for women 15 and older was pending with the agency prior to the ruling."

The FDA says that the most recent ruling is independent of that litigation and was not made in relation to the judge's ruling. And while the agency moved independently in approving Teva's application, the Department of Justice is now working on its next move regarding age restrictions for Plan B.

The FDA's decision only applies to the Plan B One-Step brand of emergency contraception.