Did the real Spanish Fly ever exist? According to legend it was a powerful aphrodisiac. Try this Spanish Fly Extra & discover its effects on you. Simply put 5-7 drops under your tongue 30 minutes before sex. You will experience increased libido & lust & works equally well on a man or woman. The formula contains l-arginine which dilates the blood vessels to the genitals which enhanced blood flow. However; those with high blood pressure; diabetes & other illnesses should not use this product; especially if you are taking medications for that illness.