Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier
WebMD

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine
WebMD

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion
    WebMD

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community
    WebMD

    Community

    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Font Size
A
A
A

Reishi Mushroom

Reishi mushroom has been used for thousands of years in many Asian cultures as a traditional medicine to enhance health and prolong life. It is also known as lingzhi.

Why do people take reishi mushroom?

Reishi mushroom has been used to help enhance the immune system, reduce stress, improve sleep, and lessen fatigue. People also take reishi mushroom for health conditions such as:

There is some scientific evidence of its effectiveness, including lab research and some small human studies. Researchers are beginning to look at the chemical makeup of this mushroom to better understand how and whether it really works for each of these conditions.

Doses may depend upon factors that include:

  • Your age
  • Condition for which the mushroom is being prescribed
  • Form of the mushroom
  • Your overall health

But each of these is a typical oral daily dose:

  • 1.5 to 9 grams of crude dried mushroom
  • 1 to 1.5 grams of reishi powder
  • 1 milliliter of reishi solution (tincture)

Can you get reishi mushroom naturally from foods?

Reishi mushroom is cultivated and sold as a food, but it may be tough and bitter.

When taken for health reasons, it is usually dried or taken as an extract, such as in the form of:

  • Liquid
  • Capsule
  • Powder

What are the risks of taking reishi mushroom?

Side effects. When used over three to six months, reishi mushroom can cause an allergic reaction associated with dryness in your:

  • Mouth
  • Throat
  • Nasal passages

It can also cause:

Risks. Taking reishi mushroom may be riskier if you have low blood pressure or are taking therapy to raise your blood pressure, are taking diabetes medications, or have immune system disorders or medications.

Higher doses of reishi mushroom might make bleeding more likely in people who have a very low platelet count.

Also, avoid using reishi mushroom if you are pregnant or breastfeeding, because there hasn't been enough study on its safety in these circumstances.

Vitamins and
Supplements
Lifestyle Guide

Which Nutrients
Are You Missing?

Learn More

Today on WebMD

vitamin rich groceries
Do you know your vitamin ABCs?
St Johns wart
Ease hot flashes and other symptoms.
 
clams
Are you getting enough?
Take your medication
Wonder pill or overkill?
 
fruits and vegetables
Video
!!69X75_Vitamins_Supplements.jpg
Article
 
Woman sleeping
Article
Woman staring into space with coffee
Article
 

Send yourself a link to download the app.

Loading ...

Please wait...

This feature is temporarily unavailable. Please try again later.

Thanks!

Now check your email account on your mobile phone to download your new app.