What is the SIDE EFFECTS & SAFETY of HUPERZINE A?

Huperzine A is POSSIBLY SAFE when taken by mouth for a short period of time (less than 3 months). It can cause some side effects including nausea, diarrhea, vomiting, sweating, blurred vision, slurred speech, restlessness, loss of appetite, contraction and twitching of muscle fibers, cramping, increased saliva and urine, inability to control urination, high blood pressure, and slowed heart rate.

We have Special Precautions & Warnings as follows:
Children: Huperzine A is POSSIBLY SAFE in children when taken by mouth for a short period of time (less than one month). Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking huperzine A if you are pregnant or breast-feeding. Stay on the safe side and avoid use.

Slow heart rate or other heart diseases: Huperzine A can slow the heart rate. This might be a problem for people who already have a slow heart rate or other heart conditions involving the heart rate. If you have heart disease, use huperzine A cautiously.

Epilepsy: Since huperzine A seems to affect brain chemicals, there is concern that it might make epilepsy worse. If you have a seizure disorder such as epilepsy, use huperzine A cautiously.

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