Amends the Pharmacy Benefit Managers Article of the Illinois Insurance Code. Provides that a pharmacy benefit manager may not retaliate against a pharmacist or pharmacy for disclosing information in a court, in an administrative hearing, before a legislative commission or committee, in any other proceeding, or to a government or law enforcement agency, if the pharmacist or pharmacy has reasonable cause to believe that the disclosed information is evidence of a violation of a State or federal law, rule, or regulation. Provides that a pharmacist or pharmacy shall make commercially reasonable efforts to limit the disclosure of confidential and proprietary information. Provides that retaliatory actions against a pharmacy or pharmacist include specified actions.