Cough medicine turned brain protector? Ambroxol may slow Parkinson’s dementia Ambroxol, long used for coughs in Europe, stabilized symptoms and brain-damage markers in Parkinson’s dementia patients over 12 months, whereas placebo patients worsened. Those with high-risk genes even saw cognitive gains, hinting at real disease-modifying power.
https://www.sciencedaily.com/r....eleases/2025/07/2507