Huperzia serrata, Huperazon, Licopodio Chino, Lycopode Chinois, Lycopodio Chinois, Lycopodium serrata, Qian Ceng Ta, Toothed Clubmoss.


Overview Information

Chinese club moss is an herb. People use it to make medicine.

Chinese club moss is used for Alzheimer's disease and general memory disorders. It is also used for fever, pain and swelling (inflammation), blood loss, and irregular menstrual periods. Some people use it to rid the body of extra fluid by increasing urine production.

Be careful not to confuse club moss and Chinese club moss. Only Chinese club moss contains a chemical called huperzine A, which might be helpful in treating memory problems.

How does it work?

Chinese club moss might help increase the level of a brain chemical that is low in patients with memory disorders. It may also protect brain cells against certain poisons.


Uses & Effectiveness?

Insufficient Evidence for

  • Alzheimer's disease.
  • Memory disorders.
  • Other conditions.
More evidence is needed to rate the effectiveness of Chinese club moss for these uses.

Side Effects

Side Effects & Safety

There isn't enough information available to know if Chinese club moss is safe. It might cause side effects such as dizziness, nausea, and sweating.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Not enough is known about the use of Chinese club moss during pregnancy and breast-feeding. Stay on the safe side and avoid use.

Asthma, chronic obstructive pulmonary disease, cardiovascular disease, blockage of the intestinal or urogenital tracts, gastrointestinal ulcer disease, or seizures: Chinese club moss contains chemicals that can affect the nervous system in such a way that it could harm people with these diseases. If you have one of these conditions, don’t use Chinese club moss until more is known.



Moderate Interaction

Be cautious with this combination

  • Drying medications (Anticholinergic drugs) interacts with CHINESE CLUB MOSS

    Chinese club moss contains chemicals that can affect the brain and heart. Some of these drying medications called anticholinergic drugs can also affect the brain and heart. But Chinese club moss works differently than drying medications. Chinese club moss might decrease the effects of drying medications.
    Some of these drying medications include atropine, scopolamine, and some medications used for allergies (antihistamines), and for depression (antidepressants).

  • Medications for Alzheimer's disease (Acetylcholinesterase (AChE) inhibitors) interacts with CHINESE CLUB MOSS

    Chinese club moss contains a chemical that affects the brain. Medications for Alzheimer's also affect the brain. Taking Chinese club moss along with medications for Alzheimer's disease might increase effects and side effects of medications for Alzheimer's disease.

  • Various medications used for glaucoma, Alzheimer's disease, and other conditions (Cholinergic drugs) interacts with CHINESE CLUB MOSS

    Chinese club moss contains a chemical that affects the body. This chemical is similar to some medications used for glaucoma, Alzheimer's disease and other conditions. Taking Chinese club moss with these medications might increase the chance of side effects.
    Some of these medications used for glaucoma, Alzheimer's disease and other conditions include pilocarpine (Pilocar and others), donepezil (Aricept), tacrine (Cognex), and others.



The appropriate dose of Chinese club moss depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for Chinese club moss. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

View References


  • Budavari S, ed. The Merck Index. 12th ed. Whitehouse Station, NJ: Merck & Co., Inc., 1996.
  • Wang T, Tang XC. Reversal of scopolamine-induced deficits in radial maze performance by (-)-huperzine A: comparison with E2020 and tacrine. Eur J Pharmacol 1998;349:137-42. View abstract.
  • Zhang RW, Tang XC, Han YY, et al. [Drug evaluation of huperzine A in the treatment of senile memory disorders]. Chung Kuo Yao Li Hsueh Pao 1991;12:250-2. View abstract.

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2018.