Debrisoquin hydriodide (1,2,3,4-tetrahydroisoquinoline-2-carboximidamide hydroiodide) has antioxidant, anti-inflammatory and neuroprotective properties. It has also been found to modulate the activity of certain neurotransmitters, including dopamine and serotonin, making it a promising candidate for the treatment of neurological disorders such as Parkinson's disease and depression.