Ehhhhh....
How it works:
Serotonin, which is thought to impede sexual interest, has two types of receptors in the brain. 5-HT1A acts like brakes for serotonin production, and 5-HT2A accelerates production. Flibanserin works by enhancing 5-HT1A (putting on the brakes) and inhibiting 5-HT2A (stopping acceleration). Between the two, serotonin production is heavily downregulated. Additionally, flibanserin's downregulation of serotonin decreases the firing of certain neurons thought to regulate the release of other neurotransmitters, namely, dopamine and norepinephrine (both thought to enhance sexual interest). The exact mechanism for these transient shifts in neurotransmitter levels, however, is still largely unknown.
Edit to Add:
Road House still works 90% of the time. Patrick Swayze PLUS Sam Elliot...thanks guys. Been gettin me laid since 1989.