Cordyceps Side Effects   
October 31, 2011
Cordyceps [Caterpillar fungus, Deer fungus parasite, Chongcao]

Cordyceps is a genus of ascomycete fungi and some of its members including Cordyceps mycelium are commonly
used in herbal medicine. The popular species in commercial products are Cordyceps sinensis, Cordyceps
ophioglossoides, Cordyceps capita, and Cordyceps. militaris. Cordyceps militaris is a traditional herbal ingredient
frequently used for tonic and medicinal purposes in eastern Asia, while, Cordyceps sinensis (dong chong xia cao; 冬蟲
夏草) has been suggested to possess anti-tumor, immuno-stimulating and antioxidant activities. For details, please,
Cordyceps Extract Benefits

Cordyceps probably is safe for healthy people at low doses. However, its side effects can be unpleasant or even
serious to certain people.

Cordyceps Side Effects
Cordyceps side effects may include diarrhea, dry mouth and nausea. Contaminated products of cordyceps may lead to
serious side effects such as lead poisoning, but it is uncommon. Cordyceps side effects may further include
hypersensitivity. Cordyceps may cause the immune system to become more active, and this may increase the
symptoms of auto-immune diseases.

Cordyceps Toxicity
None well documented. In a study of children with asthma, a combination preparation containing cordyceps did not
alter blood cell counts or renal or liver function tests.

Cordyceps Drug Interactions
Cordyceps interacts with immunosuppressants, cyclophosphamide, prednisolone and more. Cordyceps may potentially
interact with anticoagulants and monamine oxidase inhibitors.

If you have immune system disorders such as multiple sclerosis, lupus, rheumatoid arthritis, or if you are on
immunosuppressants, MAOI, anticoagulants, pregnant or breast-feeding, do not take cordyceps.

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WebMD October 31, 2011
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Different people may experience different side effects and benefits of a product. You are encouraged to report adverse
side effects to FDA, its website is, or report the adverse side effects to the manufacturer, you should be
able to find the contact information on the label.

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