Master Series Suck It Throat Spray from XR Brands. Desensitizing Oral Sex Spray comes in a 2 fluid ounces bottle. Freeze the throat of your plaything with this gag inhibitor spray. Simply spray lightly to product a numbing effect, wait five minutes, then you are ready to play. Contains a mild minty numbing agent that coats the back of the throat, helping to suppress the gag reflex and prevent discomfort during oral sex. Size 2 fluid ounces. Active ingredient: Benzocaine 5%. Categories: Health and Beauty Aids, Sprays, Desensitizing Lubricants, Flavored, Oral Products, Sex Toys for Couples