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Agoniada

Traditionally used for: Painful periods; Late periods; Indigestion; Stomach ulcer complaints.

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What is Agoniada? Agoniada is the bark of Himatanthus lancifolius, a tree from Brazil. Healers in Latin America used it mainly for period problems. It is sold as dried bark, as a tincture and in capsules. The tree belongs to the dogbane family. Its trunk gives a milky white sap called latex. The bark holds plant alkaloids, which are strong active compounds. Here is the honest verdict. Nearly all we know comes from test tubes and animals. There are no good human trials, so long use by tradition is not proof that it works or that it is safe. How does Agoniada work? No one has shown what Agoniada does in the human body. Lab work points to its alkaloids, above all one called uleine. In test tubes, uleine blocks an enzyme that breaks down acetylcholine, a nerve signal chemical. That could raise gut and muscle activity. Whether this happens at amounts people take is unknown. In animal tissue, bark extracts made the womb contract. This fits the old use for bringing on a late period. It is also why pregnancy is a firm no. In lab dishes, the bark slowed the acid pump of stomach cells. It also slowed Helicobacter pylori, a stomach bug. These are dish studies, not proof of ulcer relief in people. Animal work also hints at effects on heart rate and blood vessels. None of it has been tested in human trials. What forms does Agoniada come in? Agoniada reaches buyers mostly as dried bark and as liquid extracts. Cut or powdered bark is brewed in water as a bitter tea. Alcohol tinctures are the most common liquid form. Dry extract capsules turn up in Brazilian herb shops. Some products blend it with other "women's" herbs. Blends make it hard to know what you are actually taking. Products are rarely tested for alkaloid content. Labels may skip the Latin name, which raises the risk of a mix-up. The name agoniada is also used for other plants, including some Plumeria species. Check for Himatanthus lancifolius on the label before you buy. Where it comes from: Agoniada bark has a long record in Brazilian folk medicine. Writers in the 1800s listed it for painful and missing periods. Healers also gave it for cramps, nerves, cough, asthma and fever. The name comes from a Portuguese word for distress. It entered early Brazilian pharmacy texts as a bitter bark remedy, and its use spread through parts of South America. It is still sold in Brazilian herb markets today.

Helps

What does Agoniada help with? Painful periods: This was the main folk use of the bark. Tradition held that it eased cramping and calmed the womb. No human trial has tested this. Animal tissue studies show the opposite effect on the womb, with more contraction, not less. Late or missing periods: Healers used the bark to bring on a delayed period. That is also the reason it must be kept away from pregnancy. There is no human evidence that it works for this. Animal tissue work showing womb contraction is the only support, and it is weak. Indigestion and stomach upset: Bitter barks were widely used to settle the stomach in Latin American practice. Agoniada was one of them. Lab work shows the extract slowing acid output in stomach cells. No trial has checked whether people feel better. Stomach ulcer complaints: Traditional healers used the bark for burning stomach pain. Modern interest came from lab tests. In dish studies the extract slowed Helicobacter pylori, a bug linked to ulcers. That is a long way from treating an ulcer in a person. See a doctor for ulcer symptoms. Cough and asthma: Some Brazilian sources listed the bark for chesty cough and asthma. The reason given was that it loosened tight breathing. There is no human or animal evidence for this. Asthma needs proper medical care, not an untested bark. Minor wounds and skin sores: The latex and bark washes were applied to sores in some rural practice. Use varied from place to place. No trial has tested this. The raw latex can burn skin and eyes, so this use carries real risk.

Agoniada

Quick Facts

  • What it is: Agoniada is the bitter bark of the Brazilian tree Himatanthus lancifolius, used in folk medicine for period and stomach complaints.
  • Main uses: Painful periods, Late periods, Indigestion, Stomach ulcer complaints
  • Active ingredients: Uleine, Related indole alkaloids, Plumieride-type iridoids, Lupeol, Tannins
  • Forms: Dried bark for tea, Tincture, Dry extract capsules, Herbal blends
  • Time to effect: Not known; it may do nothing.
  • Side effects: Mostly stomach upset; heart and nerve effects are possible but untested.
  • Pregnancy & breastfeeding: Avoid: reported to act on the womb.

Educational information, not medical advice — ask your doctor or midwife.

What is Agoniada?

Agoniada is the bark of Himatanthus lancifolius, a tree from Brazil. Healers in Latin America used it mainly for period problems. It is sold as dried bark, as a tincture and in capsules.

The tree belongs to the dogbane family. Its trunk gives a milky white sap called latex. The bark holds plant alkaloids, which are strong active compounds.

Here is the honest verdict. Nearly all we know comes from test tubes and animals. There are no good human trials, so long use by tradition is not proof that it works or that it is safe.

How does Agoniada work?

No one has shown what Agoniada does in the human body. Lab work points to its alkaloids, above all one called uleine.

In test tubes, uleine blocks an enzyme that breaks down acetylcholine, a nerve signal chemical. That could raise gut and muscle activity. Whether this happens at amounts people take is unknown.

In animal tissue, bark extracts made the womb contract. This fits the old use for bringing on a late period. It is also why pregnancy is a firm no.

In lab dishes, the bark slowed the acid pump of stomach cells. It also slowed Helicobacter pylori, a stomach bug. These are dish studies, not proof of ulcer relief in people.

Animal work also hints at effects on heart rate and blood vessels. None of it has been tested in human trials.

What forms does Agoniada come in?

Agoniada reaches buyers mostly as dried bark and as liquid extracts.

Cut or powdered bark is brewed in water as a bitter tea. Alcohol tinctures are the most common liquid form. Dry extract capsules turn up in Brazilian herb shops.

Some products blend it with other "women's" herbs. Blends make it hard to know what you are actually taking.

Products are rarely tested for alkaloid content. Labels may skip the Latin name, which raises the risk of a mix-up.

The name agoniada is also used for other plants, including some Plumeria species. Check for Himatanthus lancifolius on the label before you buy.

Where it comes from:

Agoniada bark has a long record in Brazilian folk medicine. Writers in the 1800s listed it for painful and missing periods.

Healers also gave it for cramps, nerves, cough, asthma and fever. The name comes from a Portuguese word for distress.

It entered early Brazilian pharmacy texts as a bitter bark remedy, and its use spread through parts of South America. It is still sold in Brazilian herb markets today.

Who should avoid Agoniada?

  • Do not use if you are pregnant or might be pregnant. Tradition used this bark to bring on a period, and animal tissue work shows it makes the womb contract.
  • Do not use if you are breastfeeding.
  • Do not give it to children.
  • Do not use if you have myasthenia gravis (a muscle weakness disease) or take drugs for it.
  • Do not use if you take donepezil, rivastigmine, neostigmine or pyridostigmine.
  • Do not use if you have bradycardia (a slow heartbeat) or arrhythmia (an irregular heartbeat).
  • Do not use if you have asthma or a long-term lung disease.
  • Do not use if you have liver or kidney disease.
  • Never swallow the raw milky latex, and keep it away from your eyes and broken skin.
  • Avoid it if you take heart, blood pressure or nerve medicines, unless your doctor has agreed.
  • Stop at least two weeks before any surgery, and tell the doctor who gives your anaesthetic.
  • Avoid any product that does not name Himatanthus lancifolius on the label.

When should you see a doctor?

Stop taking it and get medical help the same day if you notice any of these.

Signs to act on: a slow, racing or fluttering heartbeat, fainting or near-fainting, chest pain, or trouble breathing.

Also stop and call a doctor for bleeding or cramping from the womb, repeated vomiting, severe stomach pain, a spreading rash, or yellow skin or eyes.

Go to an emergency department if a child swallows the bark, the tincture or the latex.

Is Agoniada legal where you live?

In Brazil, Agoniada bark is sold in herb shops and as a herbal product. It is not an approved medicine in the United States, the United Kingdom or the European Union, where it may appear as a supplement or not at all.

Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.

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