Vincamine is an alkaloid obtained from the Vinca minor plant. It is considered a dietary supplement in the United States and is a drug for the treatment of primary degenerative and vascular dementia.
Nicergoline is a derivative of ergot. It is used to treat senile dementia, various disorders of the desired origin, vascular disorders and oto-vestibular problems. as a dietary supplement it is used mainly because of its positive effect on the brain.
So there are three very similar dietary supplements, all of which are used to treat cognitive impairment, but still differ in some effects on the body. A study conducted on rats covering all of these so-called dietary supplements found it dealt with the onset of hypoxia caused by a lack of learning. In the aforementioned study, Vinpocetine completely prevented the disease, followed by Vincamine, and the worst was Nicergoline. None of the above dietary supplements significantly improved learning in normoxic conditions.