What is Candle wood (toothache bark / fagara)?

Candle wood is the root, bark and twigs of a thorny West African tree, Zanthoxylum zanthoxyloides. Its best-known use is as a chewing stick for cleaning teeth and easing tooth pain. In Yoruba it is called orin ata, the "pepper chewing stick", for its hot, tingling taste.

The root bark is also boiled into a bitter drink in parts of West Africa. It has been given for sore gums, joint pain, fever and the pain of sickle cell disease. Older books list the plant under its former name, Fagara zanthoxyloides.

The honest verdict: human evidence is thin. A few small studies suggest the chewing stick cleans teeth about as well as a brush. Most other claims rest on lab work and on custom.

Long and respected use is not proof that something works, and it is not proof that it is safe. Both have to be shown separately, and for this plant neither has been shown well.

How does Candle wood (toothache bark / fagara) work?

Most of what is known about how it acts comes from the lab, not from people.

The simplest explanation is physical. A frayed twig scrubs the tooth surface, much as a brush does. That alone can remove plaque.

The bark also tastes hot and leaves the tongue tingling and part-numb. This may dull tooth pain for a short time. It has not been tested against a standard painkiller.

In test tubes, bark extracts slow the growth of mouth bacteria linked to plaque and gum disease. Whether that happens in a real mouth is not established.

In lab work using blood from people with sickle cell disease, some bark acids stop red cells taking on the sickle shape. That is a result in a dish. It has not been shown to control the disease in people.

Animal studies point to mild anti-inflammatory and pain-dulling effects. Animal results often fail to repeat in humans, so treat them as a lead, not an answer.

What forms does Candle wood (toothache bark / fagara) come in?

The plant is sold and used in several forms.

Chewing sticks are the common form: short lengths of root or twig, chewed at one end until the fibres fray.

Dried bark and root powder are sold in West African markets and online, often to be boiled into a drink.

Some imported capsules, tinctures and tooth powders list fagara or Zanthoxylum on the label. The plant species is often not stated, and other Zanthoxylum species are sold under the same trade names.

In Burkina Faso a bark-based product has been registered locally as a traditional medicine for sickle cell disease. That status applies there, not in Europe or North America.

Where it comes from:

Candle wood has a long and well-recorded place in West African practice. It is one of the region's best-known chewing sticks.

Healers in Nigeria, Ghana, Burkina Faso, Benin and Senegal used the root and bark for toothache, gum trouble, joint pain, fever and stomach complaints. The stick was a daily household item, not a rare remedy.

Colonial-era drug lists from the nineteenth century recorded it as toothache bark or fagara. Researchers in the 1960s and 1970s took an interest in its alkaloids for cancer research.

From the 1970s onward, West African scientists studied the root bark for sickle cell disease, which is common in the region. That work led to a locally licensed product in Burkina Faso.

The bark was also used in some areas to bring on a late period or end a pregnancy. That history is a warning, not a recommendation.

What does Candle wood (toothache bark / fagara) help with?

• Cleaning teeth and reducing plaque: This is the use with the most support, and it is still modest. Small studies in Nigeria compared the chewing stick with a toothbrush. Plaque removal was broadly similar over short periods. These trials were small and brief, and people could tell which they were using. The scrubbing action is the likely reason for the benefit. A stick does not replace cleaning between teeth, and it does not replace dental check-ups.
• Toothache and sore gums: Tradition used the chewed stick to numb a painful tooth. The hot, tingling taste is real and fast. No trial has tested it against a normal painkiller. Any relief is likely to be brief. It does nothing about the cause. A tooth that hurts for more than a day or two needs a dentist, and an abscess needs one urgently.
• Pain of sickle cell disease: Lab work is interesting here, but human proof is lacking. In test tubes, bark acids stop red blood cells sickling. A bark product licensed in Burkina Faso is used for this. The human reports are small, mostly open-label and not well controlled. No large, blinded trial has shown fewer crises or fewer hospital stays. Never use it in place of your sickle cell care, hydroxyurea, pain relief or transfusions.
• Joint and muscle pain: Traditional healers applied bark washes and gave bark drinks for aches and swollen joints. Animal studies show some anti-inflammatory and pain-dulling effects. Human trials are absent. There is no basis to use it for arthritis instead of treatment your doctor has prescribed.
• Fever and malaria: Bark drinks were a common fever remedy across the region. In the lab, extracts slow malaria parasites. That has not been tested properly in people. Malaria can kill within days. If malaria is possible, get a test and proper drugs. Do not rely on this plant.
• Stomach upset and intestinal worms: Bark drinks were taken for colic, loose stools and worms. Lab tests show activity against some gut bacteria and parasites. Human evidence is missing. Swallowed bark can itself cause stomach pain, nausea and loose stools.
• Minor wounds and skin infections: Powdered bark was dusted or pasted onto sores in several traditions. In laboratory tests, extracts slow the growth of some bacteria and fungi. Whether this works on skin is unknown. Unwashed plant powder on an open wound can bring in dirt and germs.

Which foods are rich in Candle wood (toothache bark / fagara)?

This is a bark and root remedy, not a food. Related Zanthoxylum species give the spice known as Sichuan pepper, but that is a different plant and a different use.

What are the side effects of Candle wood (toothache bark / fagara)?

• Burning, tingling or numb tongue and lips
• Extra saliva while chewing
• Sore or irritated gums
• Worn tooth surfaces and receding gums from hard or long chewing
• Nausea, stomach pain or loose stools from swallowed bark
• Dizziness or headache
• Mouth rash or allergic reaction
• Splinters or cuts inside the mouth

Good to know:

Most reports of harm are mild and come from the mouth.

The tingling and numbness are expected, not a sign of damage. Gum soreness and tooth wear build up slowly with hard chewing.

Swallowed bark is the less predictable route. It can irritate the stomach, and the plant's alkaloids are known to damage cells in lab tests.

There is no good long-term safety data in people. Absence of reports is not the same as proof of safety.

How much Candle wood (toothache bark / fagara) should you take?

• Recommended daily: No reliable dose can be given, and most products carry none. Chewing sticks are sold as a tool, not a measured dose. The amount of active compound you take in depends on the tree, the part used and how long you chew. Capsules and powders vary widely, and labels often do not say which Zanthoxylum species is inside. Some of the plant's alkaloids can harm cells in lab tests, so swallowing bark is not the same as using the stick. If you are thinking about swallowed bark products, ask a doctor or pharmacist first.
• Best time of day: Timing does not matter much. People usually use the chewing stick in the morning and after meals, like brushing. There is no evidence that any time of day changes how the plant acts.
• With or without food: For the chewing stick, use it after food, as you would a brush. Bark drinks are bitter and sharp. People who take them often say they are easier on a full stomach. If a product upsets your stomach, that is a reason to stop, not to push on.
• Time to effect: The numbing, tingling taste starts within a minute or two of chewing. It fades quickly. Any effect on plaque or gum health would build over weeks of daily cleaning. For pain, fever or sickle cell disease, it may do nothing at all. That outcome is quite possible, and you should plan for it.
• How long to take it: Chewing sticks have been used daily for years in West Africa, with no sign of common harm beyond gum and tooth wear. For swallowed bark, no safe length of use has been worked out. There are no long-term human safety studies. As a rule, short use is more sensible than long use, and any ongoing use should involve a doctor.