Schisandra is safe for long-term use; it has relatively few side effects. It has, however, been reported to cause upset stomach, heartburn , decreased appetite, and skin rash.
because it is something un natural and human made that you put into your body. humans are not really meant to consume those kinds of things. just like with all the preservatives and junk that are in...
high-dosage intravenous injections of alkaloids isolated from fritillaria produced pupil dilation, tremor, slowing of the heart rate, and lowered blood pressure in human subjects.