Viagra is breathing life into a two-year-old boy who is suffering from a rare illness.
Oliver Sherwood has a rare condition that causes chronic high blood pressure.
The pulmonary hypertension, as it is known, can be controlled with four doses of Viagra a day.
The drug help in improving blood flow, which in adults can boost erectile function but in rare cases such as Oliver's can open the veins and capillaries to aid circulation.
'We joke when we pick up his drugs that it would be Christmas come early for most people. Obviously the dose isn't high enough to have the effect it would on adults," The Daily Telegraph quoted Oliver's mum, Sarah, as saying.
'Viagra is an expensive drug but it's actually one of the cheapest to treat pulmonary hypertension.
'We're just hoping it'll continue to work as he grows a bit older,' she added.