If you are used to taking commonly prescribed antidepressants, think twice. According to a study, you may be at high risk of developing dementia, even 20 years before the actual diagnosis, a study has warned.

The researchers found a greater incidence of dementia among patients prescribed anticholinergic antidepressants, anticholinergic bladder medications as well as anticholinergic Parkinson's disease medications than among older adults who were not prescribed these drugs.