Indivior PLC (LSE: INDV) ("Indivior" or the "Company") today announced that it has completed the acquisition of Opiant Pharmaceuticals, Inc. ("Opiant"). The transaction strengthens Indivior's addiction treatment and science portfolio by adding Opiant's late-stage assets, notably OPNT003, an investigational opioid overdose treatment designed to offer an important treatment option to address the current wave of US opioid overdoses from powerful synthetic opioids, such as fentanyl.