The morning-after pill is essentially a mega dose of birth control medication that prevents fertilization.
If taken within 72 hours of unprotected sex, it can reduce a woman's chances of getting pregnant by almost 90 percent.
"I think it's the first step in several steps that need to be taken, but it's an excellent first step," said Susan Wood, a former FDA assistant commissioner.
Supporters of the ruling believe the pill will help prevent abortions, while opponents argue the government is stepping into the role of parent..
"This is a violation of parental oversight. Parents should be furious," said Wendy Wright from Concern Women for America.
The court's ruling could be just the beginning.
The judge who decided the case also ordered the FDA to evaluate clinical data to determine whether all age restrictions should be lifted on the morning-after pill.
Even with the FDA decision, it may be several months before the pill is available at pharmacies.
The pill is actually two pills that costs between $35 to $60.
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