Drug company bosses have been secretly recorded boasting that they are selling regulated prescription drugs that cost "pennies" for hundreds of pounds.
The revelations could have consequences around the world.
A sting by Britain's Daily Telegraph has prompted a fraud investigation by Health Secretary Jeremy Hunt after one drug company executive was taped saying it was a "hallelujah" moment when the National Health Service said in 2011 how much it was prepared to pay for common prescription drugs - a price cap the drug firms appear to have rorted.
Undercover reporters, posing as people looking to buy local chemist shops, found companies claiming full price off the Government, but selling the drugs at a substantial discount to main street chemists - so both would maximise profits.