Botanical Overview
Aspidosperma quebracho-blanco, commonly known as White Quebracho, is a tree species of the Apocynaceae family native to South America including Argentina, Paraguay, Brazil, and Uruguay. The medicinally used part is primarily the bark.
Common names include White Quebracho and Quebracho Blanco.
Energetics
This plant is considered warming and drying in effect, with bitter and astringent tastes. It is tonifying in nature and primarily influences the qi aspect of vitality.
Primary Actions
- Expectorant
- Bronchodilator
- Stimulant
- Astringent
Indications
Western
- Cough
- Asthma
- Bronchitis
- Dyspnea
- Chronic respiratory ailments
Syndromes
- Respiratory congestion
- Chronic bronchial inflammation
TCM
Not documented.
Ayurveda
Not documented.
Unani
Not documented.
Constituents & Mechanisms
This species contains key phytochemicals such as indole alkaloids, tannins, and saponins which contribute to its bronchodilator and expectorant effects.
Dosage & Preparations
- Decoction of bark: 2-5 g, 1-3 times daily
- Tincture (1:5, 40% ethanol): 2-4 mL, 1-3 times daily
Safety & Contraindications
Use cautiously as high doses may irritate the gastrointestinal tract. There is limited data on safety in pregnancy and lactation; usage is not recommended during these periods. Potential additive hypotensive effects require monitoring when used concurrently with antihypertensive medications.
Astrological Correspondences
No credible astrological planetary or elemental rulerships have been established for Aspidosperma quebracho-blanco.
Selected References
- Medicinal Plants of the World, Vol. 2 – Schultes & Raffauf (1990)
- WHO Monographs on Selected Medicinal Plants, Volume 2 – World Health Organization (2002)
- Phytotherapy: A Quick Reference to Herbal Medicine – Mills & Bone (2000)