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Sixty-two patients were randomized (31 each arm). Fourteen patients (22%) dropped out for reasons including consent withdrawal (n = 9), adverse reactions (n = 4), and stroke (n = 1). Forty-eight patients (mean ± SD age 75.1 ± 6.8 years), well balanced between arms, completed the study. Regarding adherence, of the prescribed total drug dose, 75% was taken by 96% of patients for choline alphoscerate, 87.5% for placebo, and 15% for nimodipine. No statistically significant differences were found between the treatment groups for the prima