Criminals on home leave are being handed Viagra to make sure they perform between the sheets when they visit their loved ones, by the Belmarsh jail, South London.
A source at the prison said convicts serving long sentences could suffer a loss of libido when faced with the prospect of nookie after a long stint behind bars.
"On your first home leave, meeting up with the missus or girlfriend can be a bit daunting. If you have Viagra your pocket, at least you know you're going to be able to deliver," News of the World quoted a lag as saying.
However, news that the 5-pound-a-go little blue pills which boost men's sex drive are being freely dished out to serious hard men will enrage victims' families.
One prison insider said: "It's pretty rich. The system in England, Scotland and Wales is making Viagra available so prisoners can perform between the sheets when they visit their loved ones.
"Inmates nearing the end of their sentence or those held at open prisons are eligible for home release. It must be costing a fortune," the insider added.
A Ministry of Justice spokesman confirmed: "We issue Viagra after the prisoner has met with the jail's GP. A clinical decision based on the prisoner's health would be made."