OKLAHOMA CITY — The Oklahoma Supreme Court on Tuesday tossed out a 2014 law that put regulations on drugs used to induce an abortion.

The state’s high court agreed with a lower court that House Bill 2684 “does place a substantial obstacle in the path of a woman’s choice and imposes an undue burden on the woman’s right,” the ruling said.

A lower court had tossed out the measure, but the state appealed it to the Oklahoma Supreme Court.

The law would have required doctors who treat women seeking a medication abortion, which uses drugs to terminate a pregnancy, to use an obsolete regimen that has been rejected by doctors, medical experts, leading professional organizations and the FDA, according to the Center for Reproductive Rights, which represented the plaintiffs.

The ruling said that the legislative requirement that physicians use a 2000 FDA label protocol for medication-terminated pregnancies instead of the more effective 2016 label protocol puts a substantial obstacle in the path of a woman’s choice and imposes an undue burden on her rights pursuant to U.S. Supreme Court precedent as it currently exists.

Plaintiffs were the Oklahoma Coalition for Reproductive Justice and Nova Health Systems doing business as Reproductive Services, now called Tulsa Women’s Clinic.

“Today’s decision is a critical victory for Oklahoma women and their doctors,” said Autumn Katz, Center for Reproductive Rights senior counsel. “Women deserve access to safe medication abortion regardless of what state they live in.

“This law would have required women to follow a decades-old practice that is no longer the standard of medical care. Today’s ruling elevates science over politics and ensures that Oklahomans who decide to end a pregnancy can continue to get the care they need.”

Former state Rep. Randy Grau, R-Edmond, and Senate President Pro Tem Greg Treat, R-Oklahoma City, were the authors of the measure, which was signed by former Gov. Mary Fallin.

“It’s not surprising that the Oklahoma Supreme Court, one of the most pro-choice courts in the nation, ruled against another pro-life measure,” Treat said. “This measure was intended to protect the health and safety of women who sought a medication abortion by requiring the abortionist to follow the instructions on the prescription bottle. To most Oklahomans that seems reasonable, but to the Oklahoma Supreme Court it represents an undue burden. While the court’s activist decision is disappointing, I will continue to fight for amendments to the Constitution that will protect the life of the unborn and the safety of women.”

Oklahoma Attorney General Mike Hunter’s office had no comment on the ruling, which came on a 7-1 vote.