Express Scripts Inc. on Tuesday sued the Federal Trade Commission in federal court in St. Louis, alleging that a July report made “unsubstantiated, false and biased claims” about the company.

The FTC has taken unconstitutional actions in publishing a report that ignores the evidence provided by our company and other [pharmacy benefit managers], demonstrates clear ideological bias and advances a false and damaging narrative—narrative that could harm the health care system by removing essential checks and balances which would result in higher drug prices for American consumers,

Cigna Group’s Express Scripts sued the US Federal Trade Commission over a recent report that the company said demonizes pharmacy benefit managers and asked the court to order the agency to retract it.

Cigna's Express Scripts filed a lawsuit Tuesday challenging a federal report that places the blame for rising drug prices on pharmacy benefit managers, describing it as "seventy-four pages of unsupported innuendo" and calling for a retraction.

Express Scripts filed a federal lawsuit against the Federal Trade Commission on Tuesday, claiming its report blaming the pharmacy benefit management industry for rising drug costs was erroneous and defamatory.