Chaparral
(Larrea divaricata)
Also know as Creosote bush
Botanical Information
A common aromatic, resinous desert shrub that grows up to twelve or fifteen feet high with small resinous leaves, bright yellow flowers, and white, hairy fruits.
Working with Chaparral
Part(s) Used
Flowering Tops
Herb Forms
Tinctures, capsules, tablets, bulk herb, powder.\
Christopher Hobbs:
“Chaparral has been used traditionally as a remedy for bronchitis, colds, rheumatism, stomach pain, venereal disease, and chicken pox. It promotes sweating and improves the elimination of toxins from the liver and skin. Chaparral’s antibacterial activity makes it useful externally for skin abrasions or injuries. It is used as a douche for trichamonas. Chaparral contains NDGA, a substance used by the food industry to prevent fermentation and decomposition; this constituent may account for its antioxidant activity. It is a famous cancer remedy, and American herbalists think of it as a concentrated extract applied externally for skin cancer and sometimes recommend the powdered herb in capsules or tablets, or the tea as a cancer-preventative or remedy. Scientific provings for antitumor activity with this herb are inconclusive.
Chaparral has a taste of BITTER, ACRID and a temperature of WARM.”
Chaparral (Larrea tridentata), also known as creosote bush, has a long history of use in indigenous North American medicine, where it was traditionally applied for treating skin conditions, respiratory ailments, and infections due to its antimicrobial and anti-inflammatory properties.
Historical Uses
Chaparral was used by indigenous tribes for a variety of ailments, including as a tea for colds, stomach issues, and to promote sweating in fevers. Externally, it was used as a poultice for cuts, burns, and rashes, as it was believed to support wound healing.
Modern Clinical Uses
Today, herbalists and naturopaths still use chaparral for its reputed antimicrobial, anti-inflammatory, and antioxidant effects. It is sometimes recommended in alternative medicine for arthritis, skin infections, and as a natural antiseptic. Chaparral’s compounds have been studied for their potential in reducing inflammation and combating pathogens, although it is less commonly recommended due to safety concerns.
Chemistry
Chaparral contains various active compounds, including nordihydroguaiaretic acid (NDGA), flavonoids, lignans, and saponins. NDGA, a potent antioxidant, is believed to be one of its primary active components, responsible for many of its effects but also implicated in toxicity concerns.
Pharmacology
NDGA has shown antioxidant, anti-inflammatory, and antiviral properties in laboratory studies, with some potential for inhibiting cancer cell proliferation. Other compounds in chaparral also exhibit antibacterial and antifungal properties. However, chaparral has been shown to have hepatotoxic (liver-damaging) effects in certain contexts, which limits its clinical use and safety profile.
Clinical Trials
Limited clinical research is available, and most studies have focused on in vitro (test tube) or animal models rather than human trials. Some trials have suggested its potential in inhibiting cancer cell growth, but no strong evidence from human trials supports its efficacy. Due to toxicity concerns, rigorous clinical trials are limited, and regulatory bodies discourage its use as a standard treatment.
Summary
Chaparral has intriguing bioactive properties, but significant safety concerns limit its use in modern herbalism and clinical practice. While it has historical and potential therapeutic benefits, its risks, especially to the liver, make it a cautious option in herbal medicine. Further research is required, particularly on how to mitigate toxicity, before it could be widely used clinically.
Generated by ChapGPT; edited by Christopher Hobbs.
Cautions
Not for long-term use by people with kidney disease or liver conditions. Recent controversy surrounds the use of this herb internally, after several reports in the literature associated chaparral use with liver disease. Clinical guidelines suggest that it should be used with caution and ideally under the supervision of a qualified herbalist or naturopath, if used at all. Dosage recommendations are difficult to establish due to its narrow safety margin.
Conditions treated with Chaparral
Condition
Treatment Support
Application
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Condition
Treatment Support
antiviral, antibacterial, expectorant
Application
tea, tincture, capsules
Condition
Treatment Support
antiparasitic
Application
tea, tincture (diluted) as a douche
Dosages
Capsules
follow label instructions
The information given here is designed to help you make informed choices about your health. The information is drawn from numerous sources—both traditional medicine practice, from the clinical experience of many herbalists currently practicing, and supported by decades of scientific research from the author. The research most consulted includes human clinical trials that help to determine the most effective and safe herbs for various needs, the best doses, and types of preparations.
The information offered in this database is not intended as a substitute for any that may have been prescribed by your health practitioner or physician.