But, there was no survival benefit for patients who received Onivyde alone compared to those who received only fluorouracil/leucovorin, the findings showed.

Many of the drugs are generic, sterile injectable medications, such as cytarabine, a key treatment forleukemia, or fluorouracil, for colon and other cancers.

The lawmakers' investigation found evidence of one transaction where a licensed pharmacy called Priority Healthcare bought a chemotherapy drug called fluorouracil for $6.77 per vial.