Educational information, not medical advice — ask your doctor or midwife.
Bridelia ferruginea is a small savannah tree of West Africa. Healers use its stem bark most often. The Yoruba name for it is ira.
The bark is bitter and rich in tannins. It has been taken as a water decoction, used as a mouth rinse, and chewed as a stick to clean teeth. The same bark also yields a dye and a gum.
People reach for it mainly for loose stools, sore gums and high blood sugar. Those are the old uses, not proven ones.
Here is the honest verdict. Almost all the research sits in test tubes and animals, not people. Long use in tradition is not proof that a plant works, and it is not proof that it is safe.
No one has shown in people how ira bark acts. The ideas below come from lab and animal work only.
The bark holds a lot of tannins. Tannins bind proteins and make soft tissue feel tight and dry. That may be why the bark was used for loose stools and sore gums.
In rats and mice, bark extracts have lowered blood sugar. Some animal work also points to a mild effect on fat levels in the blood. Whether any of this happens in a person is not established.
In test tubes, the bark slows the growth of some bacteria and yeasts. That is a dish, not a mouth. It does not tell you that a rinse clears an infection.
Lab tests also show antioxidant activity. Antioxidants are compounds that mop up unstable molecules. This kind of result is common in plant extracts and rarely predicts a benefit you can feel.
Treat every mechanism here as a lead, not a finding.
Ira is used mostly in raw, traditional forms. Shop-bought capsules are uncommon.
The usual forms are dried stem bark, a boiled water decoction, and a chewing stick. A cooled decoction is also used as a gargle or mouth rinse.
Leaves and root bark appear in some local practice. The bark is more often studied than the rest of the plant.
Some online sellers list bark powder, teabags or tinctures. A tincture is an alcohol-based liquid extract.
These products are not standardised. Identity, strength and purity are rarely checked by anyone outside the seller. Bark sold loose can also be mixed with other species.
If you buy it, the honest position is that you cannot know the dose you are getting.
Ira bark has a long, well-attested place in West African healing, especially among Yoruba practitioners in Nigeria.
Traditional healers used bark decoctions for loose stools, stomach pain and fevers. The bark was also given for what was described as sugar sickness.
Mouth and gum use was common. Twigs were chewed to clean teeth, and cooled bark water was used as a gargle for sore mouths and thrush.
Outside medicine, the bark served as a tanning agent and a dye for cloth and leather. That use reflects its heavy tannin content.
This history records what people did. It does not record whether they got better, and it was never written down as a trial.
Stop taking it and see a doctor if you notice any of these.
Yellow skin or yellow eyes. Dark urine. Pain in the upper right side of your belly. These can be signs of liver trouble.
Shaking, sweating, a fast heartbeat (tachycardia) or confusion. These can mean your blood sugar has dropped too low.
Go to A&E or call emergency services for a swollen face or tongue, trouble breathing, or a severe rash.
Also see a doctor if diarrhoea lasts more than two days, if there is blood in the stool, or if a mouth sore does not heal within two weeks.
Ira bark is not approved as a medicine in the UK, the EU, the US, Canada or Australia. It may be sold there as a raw herb or dietary supplement, with no check that it works.
In Nigeria, it is a common traditional medicine. Packaged herbal products there need NAFDAC listing, but loose bark from a market is not regulated.
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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