That topical spray we mentioned last week—the one designed to help premature ejaculators—turns out to just be a mixture of lidocaine and prilocaine. Lidocaine is commonly used by dentists to numb the mouth, and prilocaine is used to numb skin before inserting a needle. But beyond that, Consumer Reports points out that side effects reported by the men and their partners in the study included a “rash on their penis” or “a burning sensation in their vagina.”

“Sex spray for men not so ‘revolutionary'” [Consumer Reports]
(Photo: Michel Filion)