Best side effect ever:

A drug that failed tests as an antidepressant is being hailed as "Viagra for women" after surprising but not unpleasant side effects. In three separate trials, the drug flibanserin did wonders for women's flagging sex drive despite doing nothing to lift mood. The accidental discovery is akin to Viagra's—it was originally designed as a heart medicine but failed.

And forgive me if I disagree with "some doctors":

Some doctors are sceptical about the need for pills to boost female sex drive. For some, reduced sexual interest or response may be "normal", says Professor Irwin Nazareth or University College London.

Some sex-advice columnists regard the collapse of the female libido in many LTRs to be a huge problem. Letters from boyfriends/husbands and girlfriends/wives whose marriages are on the rocks due to the seemingly inexplicable cratering of the wife's desire for sex—inexplicable because nothing is "wrong," i.e. he's not being a bastard, there are no kids or the kids aren't toddlers anymore—comprise a huge chunk of the mail around here. Reduced sex drive may be normal but it can also be disastrous—particularly for someone who demands a monogamous commitment from her partner. Want monogamy? You gotta make with the sex. No desire for sex or experiencing a "normal" reduction in sexual interest? Eventually you're going to get cheated on. Many girlfriends/wives—and some boyfriends/husbands—go through the motions and put out just enough to avoid getting cheated on or just enough to be able to claim the moral high-ground after years of passionless, just-going-through-the-motions sex drives a partner to cheat.

A pill that can restore female libido—for the husband or for some other dude—and make sex a pleasure again will be welcomed by those who value monogamy so highly that they're willing medicate themselves to ensure it.

UPDATE: I'm afraid to go look in the comments thread—I'm having computer issues (to put it mildly) and wasn't quite done with this post when it went up and wasn't able to get back on for an hour after posting to add to it. Oy. Anyway, back to the BBC's report: some doctors point out that the drug won't cure "underlying issues," that the drug won't "fix a broken relationship or help with looking after the kids or cleaning the house." For sure: if your partner doesn't want to fuck you because you're an asshole or because your partner is completely exhausted and her exhaustion is frosted with resentment because you're no help whatsoever, no pill is going to make her wanna fuck your ass. She may take the pill and then go fuck someone she isn't furious with, perhaps, but she's not going to medicate herself on your account.

And if this was a pill that restored a man's sex drive or enabled a male to perform we wouldn't even be debating its merits. We'd be stocking the shelves already and making sure it was covered by Medicare.