While there's no pharmaceutical for women that's an analog of Viagra (and not for lack of trying on the drug makers' parts), there are a lot of products passing themselves off as female libido boosters. Most of them are along the same lines as herbal Viagra, supplements that generally enhance blood flow and maybe energy.
Anyway, a female tester over at Vice tried out a bunch of these lady supplements and ranked them, from the worst (a caffeine-laden, migraine inducing cherry flavored shot) to the best (an herbal supplement called Gold Max that apparently turned her into an aggressive sexual beast).
The female Viagra conundrum is that men's dysfunction is most often a mechanical failure, whereas women's sexual dysfunction more often has psychological factors. Perhaps hoping to induce physical arousal so intense that it overwhelms any emotional issues, pharmaceutical manufacturers nevertheless continue to pursue the elusive magic bullet. Wait - isn't that a vibrator? Now that might just work.