Spurred by the success of the blue pill and an obvious lacuna in the female market – according to recent surveys, more women experience sexual dysfunction than men – the focus has shifted to a female Viagra equivalent. The rationale behind this is that since the flow of blood to the female genitals increases the lubrication of a woman with the concomitant effect of relaxing the muscles of the vagina, a drug that works in a similar manner to Viagra would be spot-on for an underserved female market. Thus far, some drugs have been put forward. Drugs like prostaglandin – already approved for men – apomorphine and phentolamine – both of which are being tested for arousal disorder in women, are regarded as promising.

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