Four members of Congress are asking for information from the NFL and the U.S. Drug Enforcement Administration (DEA) about allegations the league violated federal drug laws by routinely supplying players with opiate painkillers

A group of former players recently filed a lawsuit against the NFL, which shows multiple instances of teams trying to circumvent DEA protocol.

Reps. Frank Pallone Jr. (D-N.J.), Gene Green (D-Texas), Diana DeGette (D-Colo.), and Jan Schakowsky (D-Ill.) all sent separate letters Wednesday to commissioner Roger Goodell and DEA acting administrator Chuck Rosenberg, calling for information.

“We are writing to request additional information regarding troubling allegations that personnel of National Football League teams violated various federal laws governing prescription drugs, and administered powerful narcotics and pain medications without adequately disclosing the risks and side effects to their players,” the four lawmakers wrote in their letters to Goodell, according to ESPN.

“These allegations suggest a troubling lack of respect for the laws governing the handling of controlled substances, and raise questions about the League’s dedication to the health and safety of its players.”

The 1,800-player strong suit includes testimony from team doctors and trainers and suggests teams and doctors had a “cavalier attitude” toward the prescription of drugs, according to the court filing.

“Every doctor deposed so far … has testified that they violated one or more (federal drug laws and regulations) while serving in their capacity as a team doctor,” the court filing states.

The former players argue the improper usage has led to long-term health issues.

Copyright © 2017 Score Media Ventures Inc. All rights reserved. Certain content reproduced under license.