Acute or chronic, peripheral & cerebral vasculo-metabolic disorders w/ signs & symptoms of cerebral insufficiency or dementia eg, impaired memory & conc, dizziness, depressed mood, impaired self-care & sleep-walking cycle, disorientation in time & place, tinnitus, blurred vision, performance insufficiency, headache & fatigue. Obliterative arteriopathies of the limbs: Raynaud's syndrome & all syndromes due to altered peripheral flow. Headache in geriatric arteriosclerotic patients. Adjuvant to therapy of arterial HTN & parenterally, of hypertensive crises. Signs & symptoms of mental deterioration eg, cognitive, affective, behavioural & somatic disturbances associated w/ cerebral deterioration (chronic cerebrovascular insufficiency &/or senile & pre-senile dementia, Parkinson's disease); decreased vigilance, apathy, interpersonal relationships, asthenia, anorexia. Co-adjuvant in the rehabilitative treatment of hemiplegic patients w/ ictus sequelae.