What is Burnet saxifrage?

Burnet saxifrage is a wild meadow plant in the carrot family. The root is the part used in European folk medicine. In German-speaking countries it is known as Bibernelle.

It was taken mainly for coughs, thick phlegm and sore throats. You will find it as dried root, tea, tincture, and as one herb inside blended cough teas and syrups.

The honest verdict comes first. There are no good human trials of burnet saxifrage for any use. Long folk use is not proof that a remedy works, and it is not proof that it is safe.

Two close species share the name: Pimpinella major and Pimpinella saxifraga. Both are used in much the same way. Neither is the same plant as salad burnet or the rockery saxifrage, despite the shared English words.

How does Burnet saxifrage work?

Nobody has shown how burnet saxifrage acts in the human body.

The root holds saponins, which are soapy plant compounds. In laboratory work, saponins of this type can thin mucus and make the airway reflex more active. Whether that happens in a person's chest has not been tested.

Folk use rested on that idea. The root was believed to loosen stuck phlegm so that a cough could clear it. The bitter, aromatic taste was also thought to settle the stomach.

The root contains an essential oil and coumarins, including furanocoumarins. Furanocoumarins are well known to make skin burn more easily in sunlight. That is a side effect, not a benefit.

In test-tube studies, extracts of the root slow the growth of some bacteria. That tells you little about a sore throat in real life.

What forms does Burnet saxifrage come in?

Dried, cut root is the most common form. It is brewed as a tea.

Tincture is an alcohol extract of the root, sold in dropper bottles. Doses are counted in drops.

Blended cough teas and cough syrups sold in Germany and Austria may list Pimpinella root. There it is usually one herb among several.

A distilled root oil exists but is rare. Essential oils of this family are not safe to swallow.

The fresh young leaves are sometimes chopped into soups, salads and herb sauces. That is kitchen use of a food plant, not a medicine.

Where it comes from:

Burnet saxifrage held a strong place in old German and Austrian folk practice. Healers used the root for coughs, hoarseness and chesty colds, and as a gargle for sore throats.

During plague years in the 16th and 17th centuries it gained a famous reputation. German rhymes paired Bibernelle with garlic as protection against the plague. It did nothing of the kind, and that claim is long dead.

The root later entered printed herbals and pharmacy lists across central Europe. German regulators reviewed it in the 20th century and allowed its traditional use for catarrh of the upper airways.

That review was based on long use and plausibility. It was not based on controlled trials in people. This page describes what was done in the past and does not suggest you try it yourself.

What does Burnet saxifrage help with?

• Cough with thick phlegm: This is the main traditional use. The root was brewed as a tea to loosen stuck mucus. The idea comes from its saponins, which thin mucus in laboratory tests. No controlled human trial supports it. A warm drink alone can soothe a cough, whatever is in it.
• Sore throat and hoarseness: Folk practice used a cooled tea as a gargle for a rough, scratchy throat. Test-tube studies show the extract slows some bacteria. Whether that matters on a human throat is not known. Most sore throats are viral and settle on their own.
• Mild catarrh of the nose and airways: German tradition used the root for blocked, mucus-heavy colds. This use was accepted by regulators on the strength of tradition. No published trial has measured whether it clears catarrh better than a plain hot drink.
• Mild indigestion: The root is bitter and aromatic. Bitter herbs were widely used to settle a heavy stomach. There is no trial evidence for burnet saxifrage here. Treat this as folk custom only.
• Mouth rinse or gargle: A cooled brew was used to rinse the mouth after dental trouble. The tannins may give a mild drying, astringent feel. That sensation is not the same as healing. No human study has tested it.

Which foods are rich in Burnet saxifrage?

The young leaves are eaten as a herb in parts of central Europe, in soups, salads and green sauces. The amounts used in cooking are small. No food is a meaningful source of the root compounds discussed here.

What are the side effects of Burnet saxifrage?

• Upset stomach or nausea
• Tingling or burning in the mouth and throat
• Skin rash after sun exposure
• Itchy skin or hives
• Rare allergic reaction with swelling of the lips, tongue or throat

Good to know:

Side effects appear to be uncommon at the amounts used in teas. Good safety data in people is lacking, so mild effects may simply be unrecorded.

The two that matter most are allergy and sun-sensitive skin. People allergic to carrot-family plants can react badly. The furanocoumarins in the root can make skin burn more easily in strong sun.

Stop using it if you get a rash, mouth swelling or trouble breathing, and get medical help at once.

How much Burnet saxifrage should you take?

• Recommended daily: German product labels for Pimpinella root have typically carried a daily amount of around 6 to 12 grams of the dried root, or 6 to 15 grams of a 1:5 tincture. That is what the label says, not advice for you. People differ in weight, age, medicines and health. Your pharmacist or doctor is the right person to ask before you use it.
• Best time of day: Timing does not matter much. People drank the tea warm through the day and often one cup at bedtime for a night-time cough.
• With or without food: Food makes no known difference. Some people find bitter root teas easier on a full stomach.
• Time to effect: There is no reliable answer, because no trial has measured it. A warm drink feels soothing while you sip it. Any longer effect is unproven. It may do nothing at all for you.
• How long to take it: No study has tested long-term use, so a safe duration is not known. In folk practice it was used for a few days during a cold, not for months. A cough that lasts more than three weeks needs a doctor, not a longer course of tea.