Men should be on a daily dose of Cialis/Tadalafil by 35 at the latest: Women next. It supports blood flow, prostate health, and erection quality, and it doesn’t take much to get the benefits. 2.5 to 5mg a day is plenty. Take more if you want, but higher doses carry more stuffy nose issues, headaches, and flushing. I also forecast that women will be taking it as a matter of course before long. The same blood flow mechanism applies to them, and the small studies so far done with Tadalafil and women point to better clitoral blood flow, more sensation, better lubrication, and improved arousal, orgasm, enjoyment, and satisfaction. The benefit seems more pronounced in women with normal vascular function but low desire (SSRIs/Hormonal Birth Control/Boring Partner/etc.). Add endothelial support to the list and I think a daily low dose of Cialis becomes as common for women as it is for the men already taking it.