Educational information, not medical advice — ask your doctor or midwife.
What is Bridelia bark?
Bridelia bark is the bark of Bridelia ferruginea, a small tree that grows across West Africa. Healers used it for mouth and gum trouble, loose stools, skin sores and high blood sugar. Human proof is very thin.
The Yoruba name for the tree is ira. Twigs are chewed as a tooth-cleaning stick. The bark is boiled in water to make a dark, bitter, very astringent drink or wash.
Long use in a tradition is not proof that a plant works. It is also not proof that it is safe. Most of the research so far is in test tubes and animals, so treat this bark as unproven.
How is it thought to work?
No one has shown what Bridelia bark does inside the human body. The ideas below come from lab and animal work only.
In test tubes, bark extracts slow the growth of some mouth bacteria and yeasts. That may be why twigs were used on teeth and gums. Whether it helps real mouths is not established.
In rats and mice, bark extracts have lowered blood sugar after a sugar load. Some extracts also slowed gut enzymes that break down starch in test tubes. These findings have not been confirmed in people.
The bark is very high in tannins, which bind to proteins. In test tubes this tightens tissue and can slow fluid loss. Traditional use for loose stools may rest on that, but it has not been tested well in humans.
How is it sold and used?
Bridelia bark is mostly a raw plant material, not a standard product. You will meet it in these forms:
- Dried bark strips or chips, sold loose in West African markets - Ground bark powder - A decoction: bark boiled in water, then strained - Chewing sticks cut from twigs and small branches - Alcohol tinctures and capsules, mainly from small herbal sellers
Few products state how much bark they hold. Testing for purity is rare. Bark bought loose may be mixed with other species, since several Bridelia trees look alike.
What did tradition claim?
Bridelia ferruginea has a long, well recorded place in West African herbal practice. Ethnobotanists have logged its use in Nigeria, Ghana, Benin, Ivory Coast and beyond.
Healers boiled the bark for diarrhoea, stomach pain, fevers and what we now call diabetes. Washes were applied to sores, boils and skin rashes. Twigs served as chewing sticks for teeth and gums.
The bark also had non-medical jobs. It was used to curdle milk and as a dye and tanning agent. These records describe past practice; they are not advice to treat yourself.
Stop using it and see a doctor if any of these appear:
- Yellow skin or eyes, dark urine, or pain under your right ribs - Shaking, sweating, confusion or a pounding heart, which can mean low blood sugar (a sugar level that has dropped too far) - Vomiting that will not stop, or stomach pain that gets worse - A rash, swelling of the lips or face, or trouble breathing - Diarrhoea with blood, or diarrhoea lasting more than two days - Fever that does not settle, especially where malaria is common
Get urgent care for trouble breathing, face swelling, or confusion that comes on fast. Tell the medical team exactly what you took.
Bridelia bark is not an approved medicine in the United States, the United Kingdom, the European Union, Canada or Australia. It is sold there, if at all, as an unlicensed herbal item.
In West Africa it is a common market herb. Nigeria's NAFDAC registers some herbal products, but loose market bark is not checked for purity or strength.
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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