Hindmarch 1991.

Methods	Multicentre, double‐blind, placebo‐controlled, randomized, method of randomization not detailed.
Participants	Degenerative and vascular dementia mild to moderate severity, fulfiling Lauter's criteria. Other types of dementia or extra/ intracranial causes excluded. The study was performed in Germany. Number of patients treated with vinpocetine: 105, and those with placebo: 96. The mean age of patients (either sex) was 74.1 years in placebo group and 72.9 and 74.2 years in vinpocetine groups (range: 60‐88 years).
Interventions	Vinpocetine or placebo 3x10 or 3x20 mg/day, oral route, for 16 weeks
Outcomes	CGI and SKT for efficacy
Notes	completers analysis