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THE MERCK MANUAL MEDICAL LIBRARY: The Merck Manual of Medical Information--Home Edition
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Chamomile
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Chamomile

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Background: The daisy-like flower of this herb is dried and used as tea or in extracts.

Medicinal Claims: Various substances in chamomile reduce inflammation and fever. Chamomile, which has a soothing effect, is used as a mild sedative. Chamomile may be used to relieve stomach cramps and indigestion. It is also claimed to help gastric ulcers heal. Chamomile extract applied in a compress may soothe irritated skin.

Studies in animals suggest that substances in chamomile inhibit Helicobacter pylori, the bacteria that can contribute to stomach ulcers. However, few studies in humans have evaluated chamomile's effects, and there is no evidence that it speeds the healing of gastric ulcers. Chamomile is generally considered safe.

Possible Side Effects: Chamomile may reduce the absorption of drugs taken by mouth. Chamomile may also interact with drugs such as anticoagulants, sedatives (such as barbiturates), alcohol, and iron supplements. Some people are allergic to the pollen in chamomile products.

Last full review/revision February 2003

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