Contrayerba, Contrayerve, Contre-Poison, Dorstenia contrajerva Dorstenia contrayerva, Herbe-Chapeau.


Overview Information

Contrayerva is an herb. The root is used to make medicine.

Despite safety concerns, people take contrayerva to increase endurance (stamina) and to counteract poison released by snakebites.

How does it work?

Contrayerva might work by acting as a stimulant and by causing sweating.


Uses & Effectiveness?

Insufficient Evidence for

  • Snakebites.
  • Increasing endurance (stamina).
  • Other conditions.
More evidence is needed to rate the effectiveness of contrayerva for these uses.

Side Effects

Side Effects & Safety

Contrayerva might be UNSAFE for use. Taking it by mouth can cause heart problems. Touching the plant can make the skin extra sensitive to sunlight and, as a result, more likely to become sunburned.

Special Precautions & Warnings:

Pregnancy and breast-feeding: It might be UNSAFE for anyone, including pregnant and breast-feeding women, to use contrayerva.



We currently have no information for CONTRAYERVA Interactions.



The appropriate dose of contrayerva 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 contrayerva. 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.

View References


  • Botanical.Com A Modern Herbal. (Accessed 31 July 1999).

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

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