A brand of instant coffee is on sale which claims it can give men an erection with every cup.
Coffee brand promises erections
Stiff Bull promises to arouse men and maker their penis perky just by drinking the caffeinated drink.
However, health officials have slammed the product and warned people to stay away from it.
According to the Daily Mirror newspaper, an advisory by FDA warned: ''This undeclared ingredient may interact with nitrates found in some prescription drugs such as nitroglycerin and may lower blood pressure to dangerous levels.