Also indexed as:Lesser Periwinkle, Vinca minor
© Martin Wall
Vinpocetine has been reported to occasionally cause an upset stomach, flushing of the skin, and a skin rash;41 these effects are mild and rarely cause anyone to stop taking it. The whole periwinkle herb may also cause minor stomach upset. This may be remedied by taking the herb with food. Neither vinpocetine nor periwinkle should be taken during pregnancy or breast-feeding until more information is available. The Commission E of the German government states that some animal studies suggest periwinkle could suppress the immune system.42 This problem has not been observed to date in studies involving vinpocetine.
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