ABSTRACT:Seventy‐eight geriatric patients with symptoms and signs of cerebrovascular insufficiency were treated either with Hydergine or a placebo in a randomized, double‐blind manner for twelve weeks. Changes in the patients' condition were measured in three areas—attitude and behavior, cognitive and intellectual capacities, and clinical status (physical complaints). Analysis of the data revealed that Hydergine most significantly improved items pertaining to the patients' attitude and behavior. No untoward effects were obs