For the first time in the US, a pharmaceutical firm has asked to be allowed to sell birth control pills over the counter.

The announcement comes just weeks after the Supreme Court overturned the constitutional right to abortion.

The firm, Paris-based HDA Pharma, says its application to the Food and Drug Administration is unrelated.

The pills, the most common form of contraception in the US, have long required a prescription.

Studies have shown that over 50% of approximately 6.1 million pregnancies in the US each year are unintended. While birth control pills were first approved for use in the US more than 60 years ago, about one-third of US women who have tried to get or fill prescriptions have reported difficulties doing so.

Globally, more than 100 countries provide oral contraceptives without a prescription, making the US one of the few countries to require one. Several major US medication organisations - including the American Medical Association and American Academy of Family Physicians - have called on US authorities to do the same.

Frédérique Welgryn, Chief Strategic Operations and Innovation Officer at HRA Pharma, argued that the firm's application was a “ground-breaking moment” in reproductive equity in the US. The application, the company has said, follows years of research intended to help make its case to US regulators.

“Moving a safe and effective birth control pill to OTC [over the counter] will help even more women and people access contraception without facing unnecessary barriers.”

According to the company, a decision from the FDA is expected next year. An approval would apply exclusively to the firm’s Opill drug, which was acquired from Pfizer in 2014. Patients have been able to use the pill, if prescribed, since 1973.

The BBC has reached out to the FDA for comment.

HAD’s application comes amid intense public debate over reproductive rights in the US, with Democratic lawmakers and pro-choice activists urging the FDA to consider similar requests.

In March, for example, 50 congressmen of the House of Representatives’ Pro-Choice Caucus wrote an open letter calling on the administration to “review applications for over the counter birth control pills without delay and solely on the data”.

Ms Welgryn told theNew York Timesthat the firm’s application was unrelated and “a really sad coincidence”. “Birth control is not a solution for abortion access,” she said.

Since the Supreme Court's abortion ruling, leading US retailers have reported rationing birth control pills amid surging demand. (BBC)