Huperzine A is a substance extracted from a plant called Chinese Club Moss. Huperzine A is made by purifying the extract of all other elements and through laboratory manipulation. Hence Huperzine A supplement available in the market is considered as drug by few chemists and not a dietary health supplement. Huperzine A is considered to be beneficial for Alzheimer's disease, memory and learning enhancement, and age-related memory impairment. It is also beneficial for treating a muscle disease called myasthenia gravis, for increasing mental alertness and energy levels, and for protecting against agents that damage the nerves such as nerve gases.
Huperzine A is found to be effective in improving memory, mental function, and improving behavior in people suffering from Alzheimer’s disease, multi-infarct dementia or senile dementia. Huperzine A is considered to be an effective supplement to improve memory power. It is also considered to be beneficial for patients suffering from muscular disorder myasthenia gravis because it causes an increase in the levels of acetylcholine. The beneficial impact of Huperzine A is found to last longer than traditional medication like Neostigmine in case of myasthenia gravis. However, this needs to be proved by well controlled and large scale research. It is said that Huperzine A is effective in increasing mental alertness and energy levels, and for protecting against agents that damage the nerves such as nerve gases but more evidence is needed to support the same.
Huperzine A does not present any side effects if taken for a short term in normal adults but long term consumption can lead to complications. It can cause few side effects like vomiting, nausea, blurred vision, sweating, diarrhea, cramping, increase heart rate etc.
However, pregnant and breast feeding women should avoid Huperzine A dosages. Patients suffering from cardio-vascular disorder, Epilepsy, lung conditions, stomach sore, peptic ulcer, and gastrointestinal block should avoid Huperzine A supplements. In any case, consult your doctor before starting on Huperzine A supplement and ask the doctor to prescribe the right dosages.
The dosages generally vary within the range of 30 to 200 mcg. It is better to consult a doctor to suggest you the right quantity of dose depending on your condition.