US regulators okay 'female Viagra'

US regulators Tuesday approved the first "female Viagra," a drug known as Addyi that works on the brain to boost younger women's libido if they have lost interest in sex. Made by North Carolina-based Sprout Pharmaceuticals, Addyi, also known as flibanserin, received the nod from the US Food and Drug Administration, on the condition that extra care is taken to ensure women do not take it with alcohol due to the risk of serious side effects.