Educational information, not medical advice — ask your doctor or midwife.
Bridelia ferruginea is a small West African tree, known in Yoruba as ira. Healers use the bark, leaves and young stems. It is also called coast gum.
The bark is bitter and rich in tannins. It is boiled into a dark tea, chewed as a tooth-cleaning stick, or ground and laid on wounds. Dyers and tanners have long used the same bark.
Most traditional use centres on four things: high blood sugar, mouth and gum care, loose stools, and skin sores. Some healers also gave it for fever.
Here is the honest verdict. Nearly all the research sits in test tubes and animals. Good human trials are few, small and weak.
Long use in a tradition is not proof that a plant works. It is also not proof that it is safe. Treat the claims below as untested in people unless the page says otherwise.
How Bridelia acts in the body is not settled. Most claims come from laboratory and animal work, not from people.
In test tubes, bark extracts slow the growth of some bacteria and fungi. Whether that happens in a human mouth or on skin is unknown.
The bark is high in tannins. In lab work, tannins bind proteins and tighten tissue. That may be why the tea tastes dry and was used for loose stools.
In rats and mice, water and alcohol extracts have lowered blood sugar. Animal studies cannot tell you what a dose does in a person with diabetes.
Cell studies also show the extract mopping up free radicals, meaning unstable molecules that damage cells. This is a common finding for plant extracts. It does not by itself predict any health benefit.
Bridelia is used in a few simple forms:
Bark decoction: bark boiled in water to make a dark, bitter tea.
Chewing stick: a fresh twig frayed at one end and rubbed on the teeth.
Leaf infusion: leaves steeped in hot water.
Powdered bark: dried and ground, sometimes dusted on a sore.
Poultice: crushed bark or leaf laid on the skin.
It is sold loose in West African markets. Capsules and standardised extracts are rare, and strength is not checked in the way a licensed medicine is.
Bridelia ferruginea has a long record in West African folk medicine. It is used across Nigeria, Ghana, Benin, Ivory Coast and Burkina Faso.
Yoruba healers called it ira and valued the bark above all. It was given as a bitter tea for the illness we now call diabetes.
Other recorded uses were mouth and gum care, loose stools, fever, rheumatic pain and skin sores. Twigs served as chewing sticks long before toothbrushes were common.
The bark also had non-medical jobs. It was used to tan leather and to set dyes in cloth.
This history tells you the plant was trusted and widely known. It does not tell you the remedy works, and it is not a reason to treat yourself.
Stop using Bridelia and see a doctor if you feel unwell on it.
Get urgent help for:
Shaking, sweating, hunger, blurred vision or confusion, which can mean low blood sugar.
Yellow skin or eyes, dark urine, pale stools or pain under your right ribs, which can mean liver trouble.
A spreading rash, swelling of the face or lips, or trouble breathing.
Also see a doctor if diarrhoea lasts more than two days, if a fever will not settle, or if a wound turns red, hot or oozes.
Bridelia ferruginea is not approved as a medicine in the UK, the EU, the United States, Canada or Australia. It is sold mainly as raw plant material in West African markets and in some import shops. Products are not checked for strength or purity the way licensed medicines are.
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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