Bird's Tongue, Common Ash, European Ash, Fraxinus americana, Fraxinus excelsior, Franc Frêne, Frêne, Frêne d'Amérique, Frêne Blanc, Frêne Blanc d'Amérique, Frêne Commun, Frêne Élevé, Frêne Franc, Fresno Americano, Fresno Blanco, Grand Frêne, Weeping Ash, White Ash.
Ash is a plant. The bark and leaf are used to make medicine.
Don't confuse ash with northern prickly ash or southern prickly ash.
How does it work?
There isn't enough information to know how ash works.
Insufficient Evidence to Rate Effectiveness for...
- Gout. Gout occurs when too much of a chemical called uric acid accumulates in the blood. Early research suggests that taking a combination product containing ash bark and Smilax glabra root (Rebixiao granules) by mouth reduces levels uric acid in the blood better than the drug diclofenac in people with gout.
- Bladder problems.
- Increasing urine production to relieve water retention (as a diuretic).
- Other conditions.
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).
The appropriate dose of ash 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 ash. 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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Ji, W., Zhu, X. X., Tan, W. F., and Lu, Y. Effects of Rebixiao granules on blood uric acid in patients with repeatedly attacking acute gouty arthritis. Chin J Integr.Med 2005;11(1):15-21. View abstract.
Klein-Galczinsky, C. [Pharmacological and clinical effectiveness of a fixed phytogenic combination trembling poplar (Populus tremula), true goldenrod (Solidago virgaurea) and ash (Fraxinus excelsior) in mild to moderate rheumatic complaints]. Wien.Med Wochenschr. 1999;149(8-10):248-253. View abstract.
Kostova, I. Fraxinus ornus L. Fitoterapia 2001;72(5):471-480. View abstract.
von Kruedener, S., Schneider, W., and Elstner, E. F. A combination of Populus tremula, Solidago virgaurea and Fraxinus excelsior as an anti-inflammatory and antirheumatic drug. A short review. Arzneimittelforschung 1995;45(2):169-171. View abstract.