CHICAGO - An Illinois appellate court Friday affirmed a lower court finding that the state cannot force pharmacies and pharmacists to sell emergency contraceptives - also known as "morning after" pills - if they have religious objections.

In 2005, former Illinois Gov. Rod Blagojevich mandated that all pharmacists and pharmacies sell "Plan B," the brand name for a drug designed to prevent pregnancy following unprotected sex or a known or suspected contraceptive failure if taken within 72 hours.

Some anti-abortion advocates object to the drugs, which work by preventing the release of an egg, preventing fertilization or stopping a fertilized egg from attaching to the uterus.

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In 2011, an Illinois judge entered an injunction against the rule, finding no evidence that the drugs had ever been denied on religious grounds, and that the law was not neutral since it was designed to target religious objectors.

The Illinois appellate court agreed that the Illinois Health Care Right of Conscience Act protects pharmacists' decision not to dispense the contraceptives due to their beliefs.

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"This decision is a great victory for religious freedom," said Mark Rienzi, senior counsel for the Becket Fund, quoted in a statement about the decision.

Earlier this year, a federal court in Washington struck down a similar state rule, according to the Becket Fund, a non-profit law firm.

The American Civil Liberties Union of Illinois, which had filed an amicus brief on behalf of the state, expressed dismay at the court's decision.

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"We are dismayed that the court expressly refused to consider the interests of women who are seeking lawful prescription medication and essentially held that the religious practice of individuals trumps women's health care," said ACLU spokesman Ed Yohnka. "We think the court could not be more wrong."

A spokesperson for Illinois Governor Pat Quinn was not immediately available for comment.

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