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REISHI MUSHROOM

Other Names:

Basidiomycetes Mushroom, Champignon Basidiomycète, Champignon d’Immortalité, Champignon Reishi, Champignons Reishi, Ganoderma, Ganoderma lucidum, Hongo Reishi, Ling Chih, Ling Zhi, Mannentake, Mushroom, Mushroom of Immortality, Mushroom of Spiri...
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REISHI MUSHROOM Overview
REISHI MUSHROOM Uses
REISHI MUSHROOM Side Effects
REISHI MUSHROOM Interactions
REISHI MUSHROOM Dosing
REISHI MUSHROOM Overview Information

Reishi mushroom is a fungus that some people describe as “tough” and “woody” with a bitter taste. The fruiting body (above-ground part) and mycelium (filaments connecting a group of mushrooms) are used as medicine.

Reishi mushroom is used for boosting the immune system; viral infections such as the flu (influenza), swine flu, and avian flu; lung conditions including asthma and bronchitis; heart disease and contributing conditions such as high blood pressure and high cholesterol; kidney disease; cancer; and liver disease. It is also used for HIV/AIDS, altitude sickness, chronic fatigue syndrome (CFS), trouble sleeping (insomnia), stomach ulcers, poisoning, and herpes pain. Other uses include reducing stress and preventing fatigue.

In combination with other herbs, reishi mushroom is used to treat prostatecancer.

How does it work?

Reishi mushroom contains chemicals that seem to have a variety of potentially beneficial effects, including activity against tumors (cancer) and beneficial effects on the immune system.

REISHI MUSHROOM Uses & Effectiveness What is this?

Insufficient Evidence for:

  • Noncancerous tumors in the colon and rectum (colorectal adenomas). Early research suggests that taking reishi mushroom extract daily for 12 months reduces the number of tumors in people with colorectal adenomas.
  • Clogged arteries. Early research suggests that taking a specific reishi mushroom product (Ganopoly) reduces symptoms of clogged arteries, including chest pain and shortness of breath.
  • Diabetes. Early research suggests that taking a specific reishi mushroom product (Ganopoly) daily for 12 weeks reduces hemoglobin but not bloodsugar levels in people with type 2 diabetes.
  • Hepatitis B. Early research suggests that taking a specific reishi mushroom product (Ganopoly) for 12 weeks reduces how much of the hepatitis B virus is circulating in the body. This product also seems to improve liver function in people with this condition.
  • High cholesterol. Early research suggests that taking reishi mushroom extract daily for 12 weeks does not affect cholesterol levels in people with high blood pressure and/or high cholesterol.
  • High blood pressure. There is inconsistent evidence about the effects of reishi mushroom on high blood pressure. Early research suggests that taking reishi mushroom extract daily for 12 weeks does not lower blood pressure in people with slightly high blood pressure. However, other research suggests that taking reishi mushroom lowers blood pressure in people with more severe high blood pressure.
  • Lung cancer. Early research suggests that taking reishi mushroom does not shrink lung tumors. However, it does appear to improve immune function and quality of life in people with lung cancer.
  • Shingles-related pain. Some people report that hot water extracts of reishi mushroom decreases pain when conventional treatment does not work.
  • Boosting the immune system.
  • Viral infections.
  • Prostate cancer.
  • Asthma and bronchitis.
  • Stress.
  • Kidney disorders.
  • Liver disease.
  • HIV disease.
  • Altitude sickness.
  • Fatigue.
  • Chronic fatigue syndrome (CFS).
  • Trouble sleeping (insomnia).
  • Stomach ulcers.
  • Poisoning.
  • Other conditions.
More evidence is needed to rate the effectiveness of reishi mushroom for these uses.


REISHI MUSHROOM Side Effects & Safety

Reishi mushroom extract is POSSIBLY SAFE when taken by mouth appropriately for up to one year.

Reishi mushroom is POSSIBLY UNSAFE when taken by mouth in a powdered form for more than one month. Use of powdered reishi mushroom has been associated with toxic effects on the liver.

Reishi mushroom can also cause other side effects including dryness of the mouth, throat, and nasal area along with itchiness, stomach upset, nosebleed, and bloody stools. Drinking reishi wine can cause a rash. Breathing in reishi spores can trigger allergies.

Special Precautions & Warnings:

Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking reishi mushroom if you are pregnant or breast feeding. Stay on the safe side and avoid use.

Bleeding disorder: High doses of reishi mushroom might increase the risk of bleeding in some people with certain bleeding disorders.

Low blood pressure: Reishi mushroom seems to be able to lower blood pressure. There is a concern that it might make low blood pressure worse and could interfere with treatment. If your blood pressure is too low, it is best to avoid reishi mushroom.

A clotting disorder called thrombocytopenia: High doses of reishi mushroom might increase the risk of bleeding in people with thrombocytopenia. If you have this condition, do not use reishi mushroom.

Surgery: High doses of reishi mushroom might increase the risk of bleeding in some people if used before or during surgery. Stop using reishi mushroom at least 2 weeks before a scheduled surgery.

REISHI MUSHROOM Interactions What is this?

Moderate Interaction Be cautious with this combination

  • Medications for high blood pressure (Antihypertensive drugs) interacts with REISHI MUSHROOM

    Reishi mushroom might decrease blood pressure. Taking reishi mushroom along with medications for high blood pressure might cause your blood pressure to go too low.

    Some medications for high blood pressure include captopril (Capoten), enalapril (Vasotec), losartan (Cozaar), valsartan (Diovan), diltiazem (Cardizem), Amlodipine (Norvasc), hydrochlorothiazide (HydroDIURIL), furosemide (Lasix), and many others.

  • Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with REISHI MUSHROOM

    High doses of reishi mushroom might slow blood clotting. Taking reishi mushroom along with medications that also slow clotting might increase the chances of bruising and bleeding.

    Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.


REISHI MUSHROOM Dosing

The appropriate dose of reishi mushroom 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 reishi mushroom. 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.

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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 2009.

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