The name "hawthorn" is derived from "hedgethorn," reflecting this spiny tree's use as a living fence in much of Europe. Besides protecting estates from trespassers, hawthorn has also been used medicinally since ancient times. Roman physicians used hawthorn as a heart drug in the first century AD, but most of the literature from that period focuses on its symbolic use for religious rites and political ceremonies.
During the Middle Ages, hawthorn was used for the treatment of dropsy, a condition we now call congestive heart failure. It was also used for treating other heart ailments as well as for sore throat.
What Is Hawthorn Used for Today?
Meaningful evidence indicates that hawthorn is a safe and effective treatment for congestive heart failure (CHF)
It is thought to do so by lengthening what is called the refractory period. This term refers to the short period following a heartbeat during which the heart cannot beat again. Many irregularities of heart rhythm begin with an early beat. Digoxin shortens the refractory period, making such a premature beat more likely, while hawthorn protects against such potentially dangerous breaks in the heart's even rhythm.
Another advantage of hawthorn is its lower toxicity. With digoxin, the difference between the proper dosage and the toxic dosage is dangerously small. Hawthorn has an enormous range of safe dosing.
However, keep in mind that digoxin is itself an outdated drug. There are a great many newer drugs for CHF (such as ACE inhibitors) that are much more effective than digoxin. Many of these have been proven to prolong life in people with advanced CHF. There is as yet no reliable evidence that hawthorn offers the same benefit (although one large study found tantalizing hints that it might).
Finally, CHF is simply too dangerous a condition to rely solely on self-treatment.
The bottom line : If you have CHF, do not use hawthorn except under close physician supervision.
The bottom line: If you have CHF, do not use hawthorn except under close physician supervision.
In addition to CHF, hawthorn is sometimes used as a treatment for annoying
Hawthorn is sometimes recommended for the treatment of
What Is the Scientific Evidence for Hawthorn?
At least nine reasonable quality, double-blind, placebo-controlled trials, involving a total of more than 750 participants, have found hawthorn effective for the treatment of mild to moderate congestive heart failure
In one of the best of these studies, 209 people with relatively advanced congestive heart failure (technically, New York Heart Association [NYHA] class III) were given either 1,800 mg or 900 mg of standardized hawthorn extract or matching placebo.
In an analysis that mathematically combined the results of 10 controlled trials involving 855 patients, hawthorn extract was found to be significantly better than placebo for improving exercise tolerance, decreasing shortness of breath and fatigue, and enhancing the physiologic function of an ailing heart in mild to moderate
In another study, however, researchers found that patients with mild-to-moderate CHF taking a special extract of hawthorn,900 mg daily, were more likely to experience an initial worsening of their condition compared to those taking a placebo. But, by the end of six months, there was no difference in the two groups. In light of numerous other studies supporting the safety and effectiveness of hawthorn in CHF, the results of this special extract study need to be repeated before drawing any firm conclusions.
A comparative study suggests that hawthorn extract (900 mg) is about as effective as a low dose of the conventional drug captopril.
The usual dosage of hawthorn is 300 to 600 mg 3 times daily of an extract standardized to contain about 2% to 3% flavonoids or 18% to 20% procyanidins. Studies indicate that full effects may take up to 6 months to develop, although some improvement should be apparent much sooner.
Hawthorn appears to be generally safe. Germany's Commission E lists no known risks, contraindications, or drug interactions with hawthorn, and mice and rats have been given very large doses without showing significant toxicity.
In clinical trials, reported side effects were relatively rare and nonspecific, consisting primarily of mild dizziness, stomach upset, headache, and occasional allergic reactions (skin rash).
Perhaps the biggest risk with hawthorn is that using it instead of conventional treatment might increase risk of death or other complications of CHF. In addition, it is not known whether hawthorn can be safely combined with other drugs that affect the heart. Therefore (to reiterate), do not self-treat CHF with hawthorn. A physician's supervision is essential.
Safety in young children, pregnant or nursing women, or those with severe liver, heart, or kidney disease has not been established.
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9. Tauchert M, Siegel G, Schulz V. Hawthorn extract as plant medication for the heart; a new evaluation of its therapeutic effectiveness [translated from German]. MMW Munch Med Wochenschr. 1994;136(suppl 1):S3-S5.
10. Tauchert M, Siegel G, Schulz V. Hawthorn extract as plant medication for the heart; a new evaluation of its therapeutic effectiveness [translated from German]. MMW Munch Med Wochenschr. 1994;136(suppl 1):S3-S5.
12. Rietbrock N, Hamel M, Hempel B, et al. Efficacy of a Standardized Extract of Fresh Crataegus Berries on Exercise Tolerance and Quality of Life in Patients with Congestive Heart Failure (NYHA II) [in German; English abstract]. Arzneimittelforschung . 2001;51:793-798.
15. Tauchert M. Efficacy and safety of crataegus extract WS 1442 in comparison with placebo in patients with chronic stable New York Heart Association class-III heart failure. Am Heart J . 2002;143:910-915.
16. Belz GG, Butzer R, Gaus W, et al. Camphor- Crataegus berry extract combination dose-dependently reduces tilt induced fall in blood pressure in orthostatic hypotension. Phytomedicine . 2002;9:581-588.
17. Belz GG, Loew D. Dose-response related efficacy in orthostatic hypotension of a fixed combination of D-camphor and an extract from fresh crataegus berries and the contribution of the single components. Phytomedicine . 2003;10 Suppl 4:61-67.
19. Degenring FH, Suter A, Weber M, et al. A randomised double blind placebo controlled clinical trial of a standardised extract of fresh Crataegus berries (Crataegisan) in the treatment of patients with congestive heart failure NYHA II. Phytomedicine . 2003;10:363-369.
22. Berkrot B. RTRS-Herbal extract promising in heart failure: study. Reuters website. Available at: http://www.reuters.com/article/health-SP-A/idUSN2720388620070327 Accessed March 27, 2007.
25. Zick SM, Gillespie B, Aaronson KD. The effect of Crataegus oxycantha special extract WS 1442 on clinical progression in patients with mild to moderate symptoms of heart failure. Eur J Heart Fail. 2008 May 17.
Last reviewed April 2009 by EBSCO CAM Review Board
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