Early studies of Viagra and women found it didn't work, but doctors say those studies weren't selective enough and included women with desire disorders who, like men with such problems, can't be helped by Viagra. As with men, Viagra gets the blood flowing to the genitals in women. So for women who have difficulty achieving orgasm, vaginal dryness or a lack of sensation, arousal or engorgement, Viagra may help.
Later studies have shown that taking Viagra helps in regulating Primary Pulmonary Hypertension and many women with this condition are now being prescribed it for this purpose - and it is very effective.
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