Dementia

Vinpocetine

Vinpocetine

Vinpocetine is chemically related to vincamine, an alkaloid found in the periwinkle plant. It was introduced into clinical practice in Europe more than two decades ago for the treatment of cerebrovascular disorders and related symptoms. In...

Huperzine A

Huperzine A

Huperzine A is an extract from a club moss, whose action has been attributed to its ability to strongly inhibit the enzyme that breaks down acetylcholine in the synaptic cleft. In the column, "Huperzine A" Ray Sahelian, M.D. reports that this...

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