Adial Pharmaceuticals Inc. is a clinical-stage biopharmaceutical company. The Company is engaged in the development of medications for the treatment of addictions and related disorders. Its lead investigational drug product is AD04. AD04 is being developed for the treatment of alcohol use disorder. The active ingredient in AD04 is ondansetron, a serotonin-3 antagonist. AD04 is being designed to be used for the treatment of other addictive disorders, such as opioid use disorder, obesity, smoking, and other drug addictions.