Thyme (Thymus vulgaris), plate: Thymus vulgaris (thyme)
Thymus vulgaris (thyme). Franz Eugen Koehler, Koehler's Medizinal-Pflanzen (1887), botanical plate. Source.
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Thyme

Thymum; Greek thymon

Known today as
Thymus vulgaris and wild thyme, T. serpyllum.
Kind
Plant, in 1 older authority
Constituents
thymol, carvacrol
Earliest authority here
Pliny (AD 23/24–79)
Qualities
FireEarthAirWaterHot and dry (Galenic tradition). What the degrees mean

Thyme: what was it used for?

Warming and drying: for coughs, the stomach, and worms; burnt to cleanse the air of rooms.

Thyme: how is it taken as a tea?

An ounce of the dried herb to a pint of boiling water, sweetened with sugar or honey, a tablespoonful or more several times a day for whooping cough, catarrh, and sore throat; thyme tea, Grieve says, arrests gastric fermentation.

All the herbal teas of the database. Historical directions, not medical advice.

Thyme: what does modern science say?

Thymol, from its oil, is a true antiseptic and is still used in mouthwashes.

Pharmacognosy & Toxicology

Constituents
Mechanism
Thymol disrupts bacterial and fungal membranes; it was the antiseptic of Lister’s successors and is in mouthwashes still.
Toxic dose
The oil irritates; the herb is a food.
Standing
Thyme is in the European monographs for coughs; thymol in the mouthwash Listerine since 1879.
  • European Medicines Agency (2013). Community herbal monograph on Thymus vulgaris. Book, seen in reviews

Constituent names open the compound’s record at PubChem, and “ChEMBL” beside a name opens its record at ChEMBL, the European Bioinformatics Institute’s database of bioactive molecules. Where a mechanism line was checked against ChEMBL (ChEMBL 37, read 1 October 2026), the check is shown with the measured value and its source paper, or says plainly that nothing has been measured. Doses are as the references give them, for description only; this is not medical advice. Each source carries the result of its check against Crossref, PubMed, or the authority’s page: see Verification.

Thyme: what lore surrounds it?

Medieval ladies are said to have embroidered a sprig of thyme onto a chosen knight’s scarf or tunic to lend him courage, echoing a Greek custom of adding thyme to the bath before battle; braided into the hair it was thought to give boldness in love. Banks of thyme were held to be where the fairies danced, the belief behind Oberon’s line in A Midsummer Night’s Dream: “I know a bank where the wild thyme blows.”

Thyme: what did the older authorities say?

Pliny
Says that thyme, burned, drives away every venomous creature.

Sources

  • Pliny, Natural History XXI. Primary text
  • Dioscorides, De materia medica. Read in part · the text read
  • Icy Sedgwick, on thyme folklore. Book, not indexed
  • Grieve, M. A Modern Herbal, “Thyme, Garden.” As published on botanical.com.

Verification

Checked
October 1, 2026
Passes
  • Every sentence read against its sources, in the pass over the remaining 343 entries
  • The Standing line checked against the authority it names (EMA, WHO, FDA, CITES, Commission E)
  • Every dated or regulatory claim checked by category across the database
Sources
5 cited: 1 read in part, 1 primary text, 1 book, seen in reviews, 1 book, not indexed, 1 not yet checked.
Corrections
None were needed.

What was checked, how, and what was found is set out on the Verification page. A checked source is one whose record was found; it does not make the entry medical advice.

Cite This Entry

Version 1 · first published September 25, 2026

Chicago

“Thyme.” In Materia Medica, edited by B. C. P. Statema. Version 1. The Thinking Press, 2026–. Last modified September 25, 2026. https://thethinkingpress.org/materia-medica/thyme.

MLA

“Thyme.” Materia Medica, edited by B. C. P. Statema, version 1, The Thinking Press, 25 Sept. 2026, thethinkingpress.org/materia-medica/thyme. Accessed 8 Oct. 2026.

APA

Thyme. (2026, September 25). In B. C. P. Statema (Ed.), Materia medica (Version 1). The Thinking Press. Retrieved October 8, 2026, from https://thethinkingpress.org/materia-medica/thyme

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See Also

Drawing on the same sources: Pliny, Dioscorides, Icy Sedgwick, Grieve

Silphium · Walnut, middle bark of · Valerian · Southernwood · Verdigris · Aconite · Saffron · the bibliography →

Nearby in the alphabet

Tinder fungus (A hoof-shaped bracket of birch and beech) · The thurible · Thorn apple (of the nightshade family) · Toadflax (Linaria vulgaris) · Toadstone (Lepidotes, believed to come from a toad’s head) · Tetragrammaton (not pronounced in Jewish practice)

Historical description, not medical advice.