At a glance: German chamomile is an aromatic member of the daisy family whose flower heads are used medicinally. It has a long history in European herbal practice and an EU herbal monograph. Traditional uses are broader than the modern clinical evidence: the evidence base is strongest as a record of long-standing use and pharmacology, while reliable clinical evidence for many popular claims remains limited.[1][2]
Botanical profile
- Accepted name: Matricaria recutita L.
- Common names: German chamomile, matricaria, scented mayweed.
- Family: Asteraceae.
- Medicinal part: flower heads (flos).
- EMA herbal drug name: Matricariae flos.[1]
German chamomile should not be confused with Roman chamomile, Chamaemelum nobile. They share a common name and some traditional uses but are different species with different regulatory monographs.
Identification and morphology
Matricaria recutita is an annual aromatic herb with finely divided leaves and daisy-like capitula: white ray florets surround yellow tubular disc florets. A useful botanical feature is the conical, hollow receptacle of the mature flower head. Correct species identification matters because common names such as “chamomile” may refer to several Asteraceae.
Major constituent groups
The chemistry varies with cultivar, growing conditions and preparation. Frequently discussed constituents include:
- Volatile oil constituents, including α-bisabolol and bisabolol oxides.
- Azulene-related compounds: chamazulene is formed during distillation from precursors such as matricin and contributes to the blue colour of some chamomile essential oils.
- Flavonoids, particularly apigenin and apigenin glycosides, alongside luteolin- and quercetin-related compounds.
- Other phenolics and coumarins reported in flower preparations.[3]
A key pharmacognosy lesson is that the composition of a tea, hydroalcoholic extract and essential oil is not identical. Evidence for one preparation should not automatically be applied to another.
Traditional use
German chamomile has a long history in European herbal practice as a gentle aromatic bitter and digestive herb. It has traditionally been used for indigestion, abdominal spasm, wind and digestive discomfort, and as a calming evening infusion. Externally, chamomile preparations have also been used for minor skin irritation, inflamed mucous membranes and as washes or compresses. Steam from chamomile infusions has traditionally been used during colds and upper-respiratory discomfort.
Contemporary herbal practice
In contemporary Western herbal practice, German chamomile is usually thought of as more than a “sleep tea”. Herbalists commonly use the flower as an aromatic carminative and antispasmodic where digestive discomfort and nervous tension overlap, and externally for irritated skin or mucosa. It is often combined with herbs such as peppermint, lemon balm or fennel according to the presentation. This practitioner framing is well represented in British and European materia medica and sits comfortably alongside the pharmacology of the volatile oil and flavonoid fractions.
Traditional and regulatory use
The European Medicines Agency’s Committee on Herbal Medicinal Products (HMPC) has assessed matricaria flower for traditional uses across gastrointestinal, mouth and throat, skin/minor wound, and cough/cold contexts.[1] “Traditional use” is a regulatory evidence category based on long-standing medicinal use; it is not the same as proof from modern clinical trials.
What does the clinical evidence say?
Chamomile has been studied for a wide range of proposed uses, but the US National Center for Complementary and Integrative Health concludes that reliable evidence is insufficient to rate its clinical usefulness for many conditions. Small or preliminary studies exist in areas including anxiety and oral mucosal irritation, but results should not be generalised beyond the preparation and population actually studied.[2]
This is a good example of why monographs should separate traditional indication from clinical efficacy. A long history of use can justify further research and, in some regulatory systems, traditional registration; it does not convert weak trials into strong evidence.
Pharmacology: what is plausible?
Laboratory and preclinical work has explored anti-inflammatory, antispasmodic, antioxidant and other activities of chamomile extracts and individual constituents. Apigenin, bisabolol derivatives and volatile-oil constituents are frequently discussed in mechanistic literature.[3] These findings help explain biological plausibility but cannot by themselves demonstrate a treatment effect in humans.
Preparations
Preparations described in herbal practice and regulatory literature include infusions, liquid or dry extracts and, separately, matricaria essential oil. The essential oil has its own HMPC assessment and should not be treated as interchangeable with the whole flower or an infusion.[4]
Safety
Chamomile is generally well tolerated in ordinary food and tea amounts, but allergic reactions can occur. Risk may be higher in people allergic to other members of the Asteraceae family, such as ragweed, chrysanthemums, marigolds and daisies. Rare severe hypersensitivity reactions have been reported.[2]
Eye irritation can occur if chamomile preparations are used near the eyes. Safety also depends on the dosage form: concentrated extracts and essential oils are not equivalent to a cup of tea.
Interactions
Published and theoretical interactions have been discussed with warfarin, sedating medicines and some medicines metabolised by hepatic enzymes, but the quality and clinical relevance of evidence varies.[2] A sensible approach is to review the actual product, dose and medication list rather than declaring chamomile universally “safe with medicines” or universally contraindicated.
Pregnancy and breastfeeding
Routine culinary exposure is different from medicinal-dose use. Evidence on concentrated medicinal preparations in pregnancy and breastfeeding is limited, so individual product information and professional advice are appropriate when medicinal use is being considered.
Student note: common evidence traps
- Do not cite the chemistry of chamomile essential oil as though it describes an infusion.
- Do not treat “traditional use” in an HMPC monograph as equivalent to demonstrated clinical efficacy.
- Do not infer that apigenin activity in vitro proves a clinical anxiolytic effect of every chamomile product.
- Check whether a paper studied German or Roman chamomile; “chamomile” alone is botanically ambiguous.
References
- European Medicines Agency, Committee on Herbal Medicinal Products. Matricariae flos — Matricaria recutita L., flos. EU herbal monograph, assessment documents and regulatory summary. EMA. First monograph version published 2016; regulatory page consulted September 2026.
- National Center for Complementary and Integrative Health. Chamomile: Usefulness and Safety. NCCIH. Consulted September 2026.
- Srivastava JK, Shankar E, Gupta S. Chamomile: A herbal medicine of the past with bright future. Molecular Medicine Reports. 2010;3(6):895–901. doi:10.3892/mmr.2010.377. PubMed.
- European Medicines Agency, Committee on Herbal Medicinal Products. Matricariae aetheroleum — Matricaria recutita L., aetheroleum. EU herbal monograph and assessment report. EMA. Published 2016.
Additional materia medica sources
- ESCOP. Matricariae flos — Matricaria flower, ESCOP Monographs.
- Blumenthal M, Busse WR, Goldberg A, et al., eds. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. American Botanical Council; 1998.
- British Herbal Medicine Association. British Herbal Pharmacopoeia 1983 and British Herbal Compendium, Volume 1.
- Hoffmann D. Medical Herbalism: The Science and Practice of Herbal Medicine. Healing Arts Press; 2003.
Last reviewed: 20 September 2026. This monograph is educational and is not an individual prescribing or self-treatment guide.
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