What are chamomile's therapeutic uses?

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Natural plant product used to treat specific health conditions.
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Two distinct plants known as chamomile are used interchangeably: German and Roman chamomile. Although distantly related botanically, they both look like miniature daisies and are traditionally thought to possess similar medicinal benefits.

More than one million cups of chamomile tea are drunk daily, testifying, at least, to its good taste. Chamomile was used by early Egyptian physicians for fevers, and by ancient Greeks, Romans, and Indians for headaches and disorders of the kidneys, liver, and bladder.

The modern use of chamomile dates back to 1921, when a German firm introduced a topical form. This cream became a popular treatment for a wide variety of skin disorders, including eczema, bedsores, skin inflammation caused by radiation therapy, and contact dermatitis (from poison ivy).

Therapeutic Dosages

Chamomile cream is applied to the affected area one to four times daily. Chamomile tea can be made by pouring boiling water over 2 to 3 heaping teaspoons of flowers and steeping for ten minutes. Chamomile tinctures and pills should be taken according to the directions on the label. Alcoholic tincture may be the most potent form for internal use.

Therapeutic Uses

Germany’s Commission E authorizes the use of topical chamomile preparations for a variety of diseases of the skin and mouth. Chamomile tea is also said to reduce mild tension and stress and to aid indigestion.

Scientific Evidence

There is no reliable evidence that chamomile is effective for the treatment of any health condition.

Skin diseases. A controlled study of 161 individuals found chamomile cream just as effective as 0.25 percent hydrocortisone cream for the treatment of eczema. However, this study did not use a placebo group and does not appear to have been double-blind. For this reason, the results are not reliable.

A study of seventy-two individuals with eczema found somewhat odd results. In this trial, chamomile was not significantly more effective than placebo, but both were better than 0.5 percent hydrocortisone cream. It is difficult to interpret what these paradoxical results actually mean, but they certainly cannot be taken as proof that chamomile cream is effective.

In a double-blind study, chamomile cream proved less effective for reducing inflammation of the skin than hydrocortisone cream or witch hazel cream. Finally, in a single-blind trial, fifty women receiving radiation therapy for breast cancer were treated with either chamomile or placebo. Chamomile failed to prove superior to a placebo for preventing skin inflammation caused by the radiation therapy.

Mouth sores. A double-blind, placebo-controlled trial of 164 individuals did not find chamomile mouthwash effective for treating the mouth sores caused by chemotherapy with the drug 5-FU.

Safety Issues

Chamomile is listed on the U.S. Food and Drug Administration’s generally recognized as safe (GRAS) list. Reports that chamomile can cause severe reactions in people allergic to ragweed have received significant media attention. However, when all the evidence is examined, it does not appear that chamomile is actually more allergenic than any other plant. The cause of these reports may be products contaminated with “dog chamomile,” a highly allergenic and bad-tasting plant of similar appearance.

Chamomile also contains naturally occurring coumarin compounds that might act as blood thinners under certain circumstances. There is one case report in which it appears that the use of chamomile combined with the anticoagulant warfarin led to excessive blood thinning, resulting in internal bleeding. Some evidence suggests that chamomile might interact with other medications as well through effects on drug metabolism, but the extent of this effect has not been fully determined.

Safety in young children, pregnant or nursing women, and those with liver or kidney disease has not been established, although there have not been any credible reports of toxicity caused by this common beverage tea.

Important Interactions

Chamomile may increase the effect of blood-thinning medications such as warfarin (Coumadin), heparin, clopidogrel (Plavix), ticlopidine (Ticlid), or pentoxifylline (Trental), potentially causing problems.


Budzinski, J. W., et al. “An In Vitro Evaluation of Human Cytochrome P450 3A4 Inhibition by Selected Commercial Herbal Extracts and Tinctures.” Phytomedicine 7 (2000): 273-282.

Patzelt-Wenczler, R., and E. Ponce-Poschl. “Proof of Efficacy of KamillosanW Cream in Atopic Eczema.” European Journal of Medical Research 5 (2000): 171-175.

Segal, R., and L. Pilote. “Warfarin Interaction with Matricaria chamomilla.” Canadian Medical Association Journal 174 (2006): 1281-1282.

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