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FDA approves ‘female Viagra,’ could tap potential $1 billion market

The U.S. drug regulator on Friday approved Palatin Technologies and Amag Pharmaceuticals’ drug to restore sexual desire in premenopausal women, the latest attempt to come up with a therapy that some have dubbed as “female Viagra.”

READ MORE: Why some people have sex even when they aren’t in the mood

The therapy, Vyleesi, will compete in a market which has seen previous attempts fail. Analysts have said that a drug that safely and effectively treats loss of sexual desire in women could eventually reach annual sales of about $1 billion.

Palatin’s shares jumped 44 per cent to $1.93, while Amag shares rose 11.5 per cent after market.

Vyleesi, chemically known as bremelanotide, activates pathways in the brain involved in sexual desire, helping premenopausal women with hypoactive sexual desire disorder (HSDD).
The drug will compete with Sprout Pharmaceuticals’ Addyi, a once-daily pill that was approved for HSDD in 2015 with a warning restricting alcohol use when on the medication. It will be available from September through select pharmacies.

Addyi was approved under intense pressure from advocacy groups despite a review by scientists at the Food and Drug Administration (FDA) that deemed it minimally effective and possibly unsafe.

Vyleesi, which does not restrict alcohol use, is seen as having several advantages over Addyi, including tolerable side effects, rapid-acting nature and not having to take it every day, according to analysts.

READ MORE: Sex after 50: How to have intimacy again later in life

Side effects reported during clinical trials included mild to moderate nausea lasting no more than two hours and mostly occurred over the first three doses, Amag said. About 40 per cent of patients in clinical trials experienced nausea.

The drug is administered as a shot into the abdomen or thigh using an auto-injector at least 45 minutes before anticipated sexual activity, with the FDA recommending patients not to take more than one dose within 24 hours or more than eight doses per month.

The drug was developed by Palatin and Amag holds exclusive North America sales rights. Palatin will get $60 million from Amag for the approval plus additional payments for certain sales milestones and royalties.
FDA approves ‘female Viagra,’ could tap potential $1 billion market

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