special subjects
Ginkgo
Evidence
 to placebo ( References ). supplementation (EGb 761) did not delay the development and progression of dementia and Alzheimer disease in older people ( References ). A 2017 overview of 12 systematic reviews (59 randomized controlled trials) of A 2013 Cochrane review ( References ) of 2 studies suggested a potential role for may relieve tinnitus, but a Cochrane review of 4 studies (1543 subjects) shows that it is not helpful when tinnitus is the primary ailment ( References ). A systematic review and meta-analysis of 