Educational information, not medical advice — ask your doctor or midwife.
Fagara is the root and stem bark of a thorny West African tree, Zanthoxylum zanthoxyloides. People chew cut sticks of it to clean the teeth and numb a sore tooth. That numbing is why it is called toothache bark.
In Yoruba the chewing stick is orin ata. In Hausa the plant is fasa kwari. Healers also boil the root bark as a drink for sickle cell pain, fever, stomach upset and sore joints.
Here is the honest verdict. Lab work on the bark is plentiful, but good human trials are few, small and weak. Long use in tradition is not proof that it works, and it is not proof that it is safe.
No one has shown in solid human trials how fagara works. The ideas below come from lab and animal studies.
Chewing the stick releases sharp-tasting compounds. These give a tingling, slightly numbing feel in the mouth. That feeling may be why chewers report less tooth pain.
In test tubes, root bark extracts slow the growth of several mouth bacteria. Whether this changes gum health in real mouths is not settled. The brushing action of the stick itself may matter just as much.
In laboratory blood samples, certain acids from the bark appear to stop red cells taking a sickle shape. Small studies in people with sickle cell disease have hinted at fewer pain crises. The trials were small and poorly controlled, so this is not proof.
In animals, extracts have eased pain and lowered fever. Animal results often fail to repeat in people. Treat them as a reason to study the plant, not a reason to rely on it.
The most common form is the chewing stick, sold loose in West African markets.
Other forms you may meet include:
Dried root or stem bark, boiled at home as a decoction.
Powdered bark in capsules, sold online as a supplement.
Toothpastes, gels and mouth rinses that list the extract.
Licensed plant medicines used in a few West African countries, such as FACA in Burkina Faso, which is made for sickle cell care under medical supervision.
Labels on imported capsules rarely state the plant part or the strength. Some list only "Fagara", which is an old name for the genus. If the label does not name Zanthoxylum zanthoxyloides, you cannot be sure what is inside.
Fagara has been used across West Africa for centuries. The chewing stick is part of daily dental care in Nigeria, Ghana, Benin, Burkina Faso and Mali.
Traditional healers used the root bark for toothache and bleeding gums. They also boiled it for fever, stomach pain, swollen joints and sickle cell crises. Some communities used it in rites around childbirth.
From the 1970s, West African researchers studied the root for sickle cell disease. That work led to licensed herbal products in a few countries. The plant is also now protected in places, because digging the roots kills the tree.
Stop using fagara and see a doctor if you notice any of these:
Yellow eyes or skin, dark urine, or pain under the right ribs.
Unusual bruising, nosebleeds or bleeding gums that will not stop.
Severe stomach pain, repeated vomiting or black stools.
A rash, swollen lips or trouble breathing.
Mouth sores or a painful tooth that has not settled within two weeks.
Go to hospital, not to a herbalist, for a sickle cell pain crisis, chest pain, a high fever or severe breathlessness. These need urgent care.
In the United States, United Kingdom and European Union, fagara is not approved as a medicine. It is sold as a herbal supplement or as a chewing stick, with no check on strength or purity.
In parts of West Africa, including Burkina Faso, root-based products are registered as plant medicines and used under medical care. The tree is also protected in some countries because root harvesting kills it.
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.
One email with the summary. We'll also send a short weekly evidence update — unsubscribe any time.
