Educational information, not medical advice — ask your doctor or midwife.
Pericón is a yellow-flowered herb from Mexico and Central America. Its botanical name is Tagetes lucida. People drink it as a leaf tea for stomach upset, and cooks use it as a kitchen herb.
In the kitchen it stands in for tarragon, so shops often sell it as Mexican tarragon. The leaves smell of anise, a bit like liquorice or fennel. Fresh or dried, the flavour is the main reason it reaches most kitchens.
It is a marigold relative, but it is not the big orange cempasúchil marigold of Day of the Dead altars. It is also not French tarragon, which is a different plant from a different family. Check the botanical name on the label if you want to be sure.
Here is the honest verdict on the evidence. Almost all the research sits in test tubes and in animals. Long traditional use is not proof that a herb works, and it is not proof that it is safe.
The plant also carries two compounds that deserve respect: estragole and methyleugenol. In animal studies, high doses of these have damaged the liver and raised cancer risk. That is why this page treats casual tea as a short-term comfort measure, and treats the essential oil as something you do not swallow.
No one has shown how pericón works in people. What follows is lab and animal work only.
In test-tube studies, extracts relax strips of gut muscle. That would fit the traditional use for cramps and colic. It has not been tested in human guts.
In mice, extracts have produced calm, sedative-like effects. Some of this work points to brain messengers such as serotonin. Mouse doses and a cup of tea are not the same thing.
In laboratory tests the plant slows the growth of some bacteria and fungi. Whether that happens inside your body is unknown.
The anise smell comes mainly from estragole and related oils. The plant also holds coumarins, plant chemicals that smell of fresh hay. In lab work coumarins can affect inflammation and blood clotting, but human trials have not confirmed this for pericón.
Dried leafy stems and flowers are the usual form. You will find them loose in Mexican markets and in bagged tea.
- Dried herb for tea or infusion. - Fresh leaves as a cooking herb, sold as Mexican tarragon. - Tincture, an alcohol extract, sold in drops.
- Essential oil, used in perfume and scenting. It is not a food. - Bundles burned as incense, or hung as decoration.
- Capsules and powders, less common and poorly standardised.
Labels are often vague. Some products say only "marigold", which could be a different Tagetes species. Look for the name Tagetes lucida.
Pericón has a long, well-recorded place in Mexican life. The Aztecs knew it as yauhtli and burned it as incense in rituals. Sixteenth-century records, including the Florentine Codex, describe its ceremonial and healing use.
Healers across Mexico and Central America later used the tea for stomach pain, colic, diarrhoea and chills. It was also given for "susto", a folk illness linked to fright and loss of spirit.
Around the feast of San Miguel, farmers in central Mexico tied the flowering stems into crosses. These were placed on doors, fields and roofs for protection.
Some Huichol practice mixed the dried herb with strong native tobacco for smoking. That use is ritual, not a home remedy, and it carries the usual harms of smoking.
These customs tell you the plant mattered. They do not tell you what it does in the body.
Stop pericón and get urgent medical help if you notice:
- Yellow skin or yellow eyes, or dark urine. - Severe or lasting pain in the upper right side of your belly. - Swelling of the lips, face, tongue or throat, or trouble breathing. - Unusual bruising, nosebleeds or bleeding that will not stop.
See a doctor within a day or two if diarrhoea lasts more than 48 hours, or if you have fever, blood in your stool, or signs of dehydration. Also see a doctor if stomach pain, cramps or a cough keep coming back.
In Mexico and much of Latin America, pericón is an ordinary market herb and food flavouring. In the United States it is sold as a culinary herb and a dietary supplement, and it is not approved as a drug. In the United Kingdom and the European Union it may be sold as food or as a food supplement, while added methyleugenol and estragole in flavourings are limited by law.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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