Skip to main content


Medically reviewed by Last updated on Oct 14, 2021.

What are other common names?

  • Leontodon taraxacum
  • Taraxacum dens-leonis
  • Taraxacum officinale
  • Taraxacum platycarpum
  • Taraxacum vulgares
  • Blowball
  • Cankerwort
  • Cochet
  • Common Dandelion
  • Dandelion Extract
  • Dandelions
  • Endive Sauvage
  • Lion's Teeth
  • Lion's Tooth
  • Pissenlit
  • Priest's Crown
  • Pu Gong Ying
  • Puffball
  • Swine Snout
  • Taraxacum
  • Wild Endive

What is this product used for?

Dandelion is a green leafy plant and the leaves and roots can be eaten. It is also sold as a dietary supplement product. It provides many nutrients and some people use it as medicine. Science does not support the use of this product for any health problem.

What are the precautions when taking this product?

  • Always check with your doctor before you use a natural product. Some products may not mix well with other drugs or natural products.

  • Be sure to tell your doctor if you are pregnant, plan on getting pregnant, or are breastfeeding. You will need to talk about the benefits and risks of using this natural product.

  • Take extra care if you are allergic to pollens or plants like ragweed, daisy, aster, marigolds, or chrysanthemums.

  • Take extra care if you are taking drugs called “water pills.” These drugs can decrease the potassium in your blood. These are drugs like furosemide, hydrochlorothiazide, or chlorothiazide.

  • If you have blood sugar problems, keep hard candies, glucose tablets, liquid glucose, or juice on hand for low blood sugar.

  • Take extra care and check with your doctor if you have:

    • Asthma

    • Blood pressure problems

    • Kidney stones

    • Liver problems like a biliary obstruction or gallstones

    • Diabetes

    • Problems with potassium levels

What should I watch for?

  • Upset stomach

  • Rash

  • Red, itchy eyes

  • Stuffy or runny nose and post-nasal drip

When do I need to call the doctor?

  • Signs of a very bad reaction. These include wheezing; tightness in the chest; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat. Go to the ER right away.

  • Signs of low blood sugar. These include hunger, dizziness, shaking, a fast heartbeat, confusion, or sweating.

  • Very bad throwing up

  • Very bad loose stools

Where can I learn more?

National Center for Complementary and Integrative Health

Last Reviewed Date


Consumer information use

This generalized information is a limited summary of diagnosis, treatment, and/or medication information. It is not meant to be comprehensive and should be used as a tool to help the user understand and/or assess potential diagnostic and treatment options. It does NOT include all information about conditions, treatments, medications, side effects, or risks that may apply to a specific patient. It is not intended to be medical advice or a substitute for the medical advice, diagnosis, or treatment of a health care provider based on the health care provider's examination and assessment of a patient’s specific and unique circumstances. Patients must speak with a health care provider for complete information about their health, medical questions, and treatment options, including any risks or benefits regarding use of medications. This information does not endorse any treatments or medications as safe, effective, or approved for treating a specific patient. UpToDate, Inc. and its affiliates disclaim any warranty or liability relating to this information or the use thereof. The use of this information is governed by the Terms of Use, available at


Copyright © 2022 UpToDate, Inc. and its affiliates and/or licensors. All rights reserved.

More about dandelion

Patient resources

Professional resources

Related treatment guides

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.