ATHENS — A report from Greek prosecutors has found that 10 high-profile politicians, including two former prime ministers and a top European Union official, may be linked to bribery accusations involving a Swiss drug manufacturer.

The inquiry, which was sent to Parliament on Tuesday by anticorruption prosecutors in Athens, is centered on accusations that the pharmaceutical giant Novartis made payments to politicians in exchange for fixing the prices of its medicines at artificially high levels and increasing its access to the Greek market.

According to prosecutors, who were assisted by the F.B.I., the bribes are estimated to be in the millions of euros, and the losses to the Greek state could have been in the billions.

The prosecutors said that Greek officials accepted money from Novartis between 2006 and 2015, a time frame that includes a period in which Athens was under pressure from creditors to tighten spending and contain a financial crisis.