Viagra has long been the go-to drug for impotent men, but it's about to face some stiff competition.
Cialis, also known as the "weekend pill", is eight times more powerful but has only been available to a small number of men on the NHS.
That's set to change as the patent has expired on the drug, allowing frustrated fellas to get their hands on the generic version, known as tadalafil from their GP.
According to online chemist The Independent Pharmacy, each pill can now be had for only £3.75 privately - down from a price of £11.25.
Spokesman Scott McDougall told The Sun : "We predict tadalafil will completely replace Viagra. It lasts up to eight times longer with no added side effects.
"Men have to take Viagra a few hours before sex, and that can kill the buzz if you need to pop a pill while out on a Saturday night.
"Tadalafil has the equivalent effect, but a man can take it on a Friday night and enjoy their weekend. It is going to become the norm for men with erectile dysfunction."
Superdrug and Lloyds Pharmacy will also be stocking the drug but haven't yet confirmed what the pricing will be.
Anyone wanting to buy it will still need a GP's prescription, but estimates are that around five million Brits suffer from impotence caused by a variety of factors such as stress, depression, heart disease and diabetes.