WHY ISN’T THERE A FEMALE VIAGRA?
For men, physical arousal and the desire to have sex are closely connected, but women can be ‘physically aroused’ (with increased blood flowing to the reproductive organs) but still not interested in having sex. For a woman, desire is also psychological and may be dependent on the state of her relationship, the timing, her mood, what else is going on in her life – it is not a simple physical state to be fixed with a pill. The first drug to treat low sexual desire in women – Addyi – has not been successful in the USA. Unlike Viagra, it needs to be taken daily and common side effects include sleepiness, dizziness, fainting, nausea and anxiety. Trials showed women’s overall feeling of improvement was slow to none – a 0.5 increase compared to placebo in the number of times they had ‘satisfying sexual events’.