Plan the perfect garden with our interactive tool →

Milk Thistle, Dandelion Root & Yellow Dock Side Effects

Shana Novak/Digital Vision/Getty Images

Milk thistle, dandelion root and yellow dock, together or alone, are often recommended by herbalists for patients suffering with digestive problems and liver or gall bladder disease. Milk thistle is used for toning the liver and treating disorders of the liver including hepatitis and cirrhosis. Dandelion root is considered a digestive aid and appetite stimulant and yellow dock also assists with digestion. All three herbs are typically taken in the form of a tincture, but decoctions (strong teas) are also common.

Milk Thistle

Milk thistle is considered safe for most people, but those with ragweed allergies may experience a rash or even severe allergic reactions when taking the herb. Other side effects include diarrhea, bloating, nausea, gas and upset stomach. Women with a history of ovarian, breast or uterine cancer should not take milk thistle because it mimics the effects of estrogen, according to the WebMD website. WebMD reports no contraindications for taking milk thistle with other herbs or medications.

Dandelion Root

Some people can develop mouth sores as an allergic reaction to dandelion root. Those with ragweed allergies or allergies to yarrow, daisies, chrysanthemums, chamomile, yarrow and iodine may experience allergic reactions as well. This herb is generally considered safe; however, the diuretic properties of dandelion can increase the elimination of drugs from the body. Consult with your prescribing physician if you are taking medication. Dandelion root is contraindicated if you are taking lithium, antibiotics or antacids.

  • Milk thistle is considered safe for most people, but those with ragweed allergies may experience a rash or even severe allergic reactions when taking the herb.

Yellow Dock

Yellow dock is an extremely safe herb to take in recommended dosages. Side effects include loose stools or mild diarrhea. No drug interactions of concern exist with yellow dock, according to "Prevention" magazine.

Related Articles

Allergies of the Daisy Family
Allergies of the Daisy Family
How to Harvest Milk Thistle
How to Harvest Milk Thistle
Herbs That Kill Staphylococcus Aureus
Herbs That Kill Staphylococcus Aureus
What Weed Killer Kills Buckthorn?
What Weed Killer Kills Buckthorn?
Characteristics of Ginger
Characteristics of Ginger
Herbs That Kill Candida
Herbs That Kill Candida
What Are the Dangers of Sambucus Nigra?
What Are the Dangers of Sambucus Nigra?
Are Chinese Palm Plants Poisonous to Cats?
Are Chinese Palm Plants Poisonous to Cats?
Are Ficus Trees Poisonous to Children?
Are Ficus Trees Poisonous to Children?
Native Plants in Germany
Native Plants in Germany
Safety of Chrysanthemum Tea
Safety of Chrysanthemum Tea
Florists & Foam Toxicity
Florists & Foam Toxicity
What Makes a Foxglove Plant Poisonous?
What Makes a Foxglove Plant Poisonous?
Is Preen Dangerous to Dogs?
Is Preen Dangerous to Dogs?
Fun Facts About Cilantro
Fun Facts About Cilantro
Does Cinnamon Kill Candida?
Does Cinnamon Kill Candida?
When to Plant Red Potatoes in Mississippi
When to Plant Red Potatoes in Mississippi
Garden Guides
×