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Fool's Parsley

What other names is Fool's Parsley known by?

Ache des Chiens, Aethusa cynapium, Ciguë des Jardins, Ciguë des Moissons, Dog Parsley, Dog Poison, Éthuse Ciguë, Faux Persil, Fool's-Cicely, Fools Parsley, Lesser Hemlock, Perejil Loco, Perejil Traidor, Persil des Chiens, Petite Ciguë, Small Hemlock.

What is Fool's Parsley?

Fool's parsley is an herb. The parts that grow above the ground are used to make medicine.

Despite serious safety concerns, people take fool's parsley for stomach and intestinal problems, cholera, diarrhea, and seizures (convulsions).

Insufficient Evidence to Rate Effectiveness for...

  • Stomach and intestinal problems.
  • Diarrhea.
  • Seizures (convulsions).
  • Other conditions.
More evidence is needed to rate the effectiveness of fool's parsley for these uses.

How does Fool's Parsley work?

There isn't enough information available to know how fool's parsley might work.

Are there safety concerns?

Fool's parsley is UNSAFE. Avoid using it. It might cause serious, possibly life-threatening poisonings.

Fool's parsley got its name because it looks a lot like young garden parsley. Be careful not to confuse the two, since fool's parsley is poisonous.

Special Precautions & Warnings:

Pregnancy and breast-feeding: It is UNSAFE for anyone, including pregnant and breast-feeding women, to use fool's parsley.

Dosing considerations for Fool's Parsley.

The appropriate dose of fool's parsley 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 fool's parsley. 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.

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).

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Reviewed on 9/17/2019

Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.


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