Chamomile Tea
Chamomile tea: what research exists on the tea itself, what NIH says about anxiety and sleep, allergy warnings for ragweed-family allergies, and interactions with warfarin and birth control.
Content last updated . This page has not been medically reviewed.
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Overview
Chamomile tea is made from chamomile flowers. This page is about the tea as a preparation. The plant's background, traditional uses and other forms are in the Chamomile guide in Herbs & Botanicals. Caffeine: chamomile is not Camellia sinensis, so a pure chamomile infusion is a herbal tea, not true tea. [1]Which chamomile
There are two types, German and Roman chamomile; NIH's summary covers German chamomile (Matricaria recutita, also Matricaria chamomilla). [2] Check the label for the Latin name, and whether the bag is pure chamomile or a blend.What the research shows about the tea
PubMed lists only 4 randomized controlled trials that mention "chamomile tea" in the title or abstract (see Research). Most chamomile trials use extracts or capsules. NIH's evidence points are:| Use | What NIH says | Applies to tea? |
|---|---|---|
| Generalized anxiety disorder | Some preliminary studies suggest a chamomile dietary supplement might help. [2] | These were supplements, not tea |
| Insomnia | Very little information; a 2019 review found one study with no benefit. [2] | Not shown |
| Colic and diarrhea in children | Certain herb combinations including chamomile may help; chamomile alone has not been shown to. [2] | Combinations only |
| Mouth inflammation after cancer treatment | Small studies of chamomile mouthwashes. [2] | A mouthwash, not a drink |
We do not carry results from supplements over to the tea.
What EU regulators concluded
The EU monograph describes matricaria (chamomile) flower as a traditional herbal medicinal product, on the basis of long-standing use, for minor gastrointestinal complaints such as bloating and minor spasms, relief of common cold symptoms, minor mouth and throat inflammation and certain skin uses; it does not rely on clinical trials, and the committee noted that studies were insufficient because chamomile was not compared with another treatment. [3] For adults and adolescents the monograph describes 1.5 to 4 g of the flower in 150 ml of boiling water as an infusion, 3 to 4 times daily, with a doctor to be consulted if symptoms persist for more than one week; amounts for younger children exist for some preparations, but ask a pediatrician before giving any herbal drink to a child. [3] This is a description of authorised products, not a recommendation. See EU monograph examples.Safety
- The EU monograph says chamomile must not be used by people allergic to chamomile or other plants of the Asteraceae (daisy or ragweed) family, and allergic reactions, sometimes severe, have been reported when liquid chamomile preparations touched the lining of the mouth. [3]
- Chamomile is likely safe in the amounts commonly found in teas and foods. Side effects are uncommon but can include nausea, dizziness and allergic reactions, including severe reactions and anaphylaxis. [2]
- Allergy: more likely if you are allergic to ragweed, chrysanthemums, marigolds or daisies. [2]
- Hormones: chamomile might have some estrogen-like effects, and preliminary studies suggest it might reduce the effect of birth control pills. [2]
- Medicines: interactions with warfarin and some liver-processed drugs have been reported; theoretical with sedatives. [2]
- Little is known about safety in pregnancy or breastfeeding. [2] See Safety.
Preparation
We do not give a universal steeping time or amount: it depends on the product, and we have not verified a method for every form. Follow the instructions on a product made for tea.Frequently asked questions
Does chamomile tea help you sleep?
NIH found very little information on insomnia, and one study in a 2019 review found no benefit. [2]
Is chamomile tea safe with blood thinners?
An interaction between chamomile and warfarin has been reported. Ask a pharmacist. [2]
References
- Huda HS, Majid NBA, Chen Y, et al. Exploring the ancient roots and modern global brews of tea and herbal beverages: A comprehensive review. Food Sci Nutr. 2024. PubMed 39479640.
- National Center for Complementary and Integrative Health (NIH). Chamomile: Usefulness and Safety. Page last updated November 2024.
- European Medicines Agency, Committee on Herbal Medicinal Products (HMPC). Matricariae flos (matricaria flower) - herbal medicinal product (public summary) and EU herbal monograph, EMA/HMPC/55843/2011.
Education, not medical advice. This page is for general information. It does not diagnose or treat any condition and is not a substitute for care from a qualified health professional. Natural does not automatically mean safe. Ask a clinician or pharmacist before changing your care, especially if you take medication, are pregnant or breastfeeding, or have a health condition.