Reviewed on 6/11/2021
Other Name(s):

Becabunga, Beccabunga, Cresson de Cheval, Cresson de Chien, Mouth-Smart, Neckweed, Salade de Chouette, Speedwell, Veronica beccabunga, Véronique Beccabunga, Véronique des Ruisseaux, Water Pimpernel, Water Purslane.


Brooklime is a plant. People use the juice as medicine.

Brooklime is used for reducing urine output; and for treating constipation, liver complaints, severe diarrhea (dysentery), lung infection, and bleeding gums.

Don't confuse brooklime with black root (Leptandra virginica) or veronica (Veronica officinalis). All three plants are sometimes called “speedwell.”

How does it work?

There isn't enough information to know how brooklime might work.


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Uses & Effectiveness

Insufficient Evidence to Rate Effectiveness for...

  • Reducing urine output.
  • Constipation.
  • Liver complaints.
  • Severe diarrhea (dysentery).
  • Lung infection.
  • Bleeding gums.
  • Other conditions.
More evidence is needed to rate the effectiveness of brooklime for these uses.

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).

Side Effects

It is not known if brooklime is safe or what the possible side effects might be.


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Special Precautions & Warnings

Pregnancy and breast-feeding: Not enough is known about the use of brooklime during pregnancy and breast-feeding. Stay on the safe side and avoid use.


LithiumInteraction Rating: Moderate Be cautious with this combination.Talk with your health provider.

Brooklime might have an effect like a water pill or "diuretic." Taking brooklime might decrease how well the body gets rid of lithium. This could increase how much lithium is in the body and result in serious side effects. Talk with your healthcare provider before using this product if you are taking lithium. Your lithium dose might need to be changed.


The appropriate dose of brooklime 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 brooklime. 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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Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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Lust J. The herb book. New York, NY: Bantam Books, 1999.