Can women take Viagra?

Well, I have found the medical view with a summary:

Viagra works by increasing blood flow to the genital area. The penis and the clitoris are analogous organs. If the penis can become erect through Viagra, why cant the clitoris? An erect clitoris is necessary for female orgasm, as it is for males.

Thus, Viagra could conceivably work for women who are anorgasmic. There have been a few studies done recently on the use of Viagra in women, but most of them have been performed with too few subjects to make any definite conclusions.

The most useful study involved treating 33 postmenopausal women, who complained of sexual dysfunction, with Viagra for a time period of three months. These women were then assessed using the self-administered Index of Female Sexual Function (IFSF) and the global efficacy question (GEQ) Did treatment improve your sexual function?

Mean scores showed that lubrication improved by 23.2%, orgasm by 7.4%, and clitoral sensation by 31.3%. 21% of the women noted improvement on the GEQ. However, overall only 18.1% of the women had a significant therapeutic response (more than 60% improvement in IFSF score).

Negative side effects included clitoral discomfort and hypersensitivity in 21% of the women, headache and dizziness. This study shows that overall sexual function did not improve significantly.

However, since there have been relatively few studies done on this subject, at this point no definite conclusions can be made regarding the role of Viagra in women.