WASHINGTON (June 16, 2010)—The U.S. Food and Drug Administration says the first pill designed to boost the female sex drive failed to make a significant impact on libido in two studies, but the FDA says women did report slightly more sexually satisfying experiences.

The drug maker Boehringer Ingelheim has asked the FDA to approve the drug flibanserin for women who report a lack of sexual desire.

The FDA will ask a panel of experts on Friday to weigh in on the drug's safety and effectiveness.

The agency will also ask its experts to comment on increased side effects like depression, fainting and dizziness seen among women taking the pill.

The search for so-called "female Viagra," has proven elusive and many drugs were abandoned after showing lackluster results.

Dr. Elizabeth Kavaler, a urologist at Lenox Hill Hospital in New York, says arousal in women is so complicated that it may be unrealistic to expect a pill to completely address sexual problems.