What is Tudri Surkh?

Tudri Surkh is the seed of Matthiola incana, the red stock flower, used as a single drug in Persian and Unani medicine. It is also sold as Red stock seed or Tukhm-e-Tudri Surkh. Traditional healers give it in cooling seed mixtures for a dry cough, a raw chest and throat, and as a general strengthening tonic.

The honest verdict comes first: this seed has a long record in one tradition and almost no modern testing behind it. Long traditional use is not proof that something works, and that point applies to everything on this page.

Most products are traditional preparations rather than standardised extracts. That means the strength of what you buy can vary widely from one shop to the next.

One more practical warning. Several unrelated seeds are sold under the name "Tudri" in red, white and yellow versions, so the Latin name Matthiola incana on the label matters more than the trade name.

How does Tudri Surkh work?

Nobody has shown how Tudri Surkh works in the body, so what follows is traditional theory plus a little plant chemistry.

In Unani thought the seed is classed as cold and moist. It is used to damp down dryness and heat, such as a tickly cough, a raw throat or a burning feeling in the chest.

The one plausible physical effect is simple. Seeds of this family swell in water and release mucilage, a slippery gel that can coat and soothe an irritated throat. That is a local, short-lived comfort effect, and it is not the same as treating the illness underneath.

The tonic and aphrodisiac uses have no known mechanism at all. No study has measured hormones, stamina or sexual function after taking this seed.

What forms does Tudri Surkh come in?

You will usually meet Tudri Surkh as whole dried seed, sold loose by Unani and Persian pharmacies.

It is most often soaked in water until it turns slippery, or simmered into a decoction (seeds boiled in water and strained). Plain seed powder is also used, and the seed is blended into traditional syrups and seed pastes.

Standardised extracts, capsules and tinctures are not part of the tradition and are rarely genuine when offered. Buy only from a supplier who names the plant as Matthiola incana.

Where it comes from:

Tudri Surkh appears in Persian and Unani materia medica as one of the "tukhm" (seed) drugs, grouped with other cooling, mucilage-rich seeds. Physicians in the medieval Persian and later Indo-Unani tradition used it for dryness of the chest, cough and general debility. It remains a staple of that one tradition and has no separate standing in Chinese, Ayurvedic or Western herbal practice.

What does Tudri Surkh help with?

• Dry, tickly cough: This is the main traditional use. The slippery gel the soaked seed makes may coat and soothe an irritated throat, which is a comfort effect rather than a treatment for the cause. No human trial has tested Tudri Surkh for cough.
• Sore or raw throat and hoarseness: Unani practice uses the soaked seed or a warm decoction to ease rawness. Any benefit is likely local and short-lived. There is no clinical study measuring pain, hoarseness or healing time.
• Chest dryness during fever (traditional use): Classical texts give cooling seeds during dry, feverish illness. This reflects the hot and cold framework of Unani medicine, not a tested effect on fever. A fever that lasts or rises needs medical assessment, not a seed.
• General weakness and convalescence (traditional tonic use): The seed is added to tonic mixtures for people recovering from illness. No study has measured strength, appetite, weight or recovery time. Ongoing weakness has causes worth finding, such as anaemia (low blood iron) or thyroid problems.
• Low sexual desire (traditional claim only): Some Unani compounds use Tudri seeds as an aphrodisiac. This is a traditional claim with no supporting human evidence of any kind. Do not rely on it, and do not use it in place of care for erection problems, which can be an early sign of heart or blood vessel disease.

Which foods are rich in Tudri Surkh?

You cannot get Tudri Surkh from the diet; it is used only as a traditional medicine.

What are the side effects of Tudri Surkh?

• Loose stools or diarrhoea, mostly at higher amounts
• Wind and bloating
• Stomach discomfort or nausea
• Feeling of a blocked or tight throat if taken with too little water
• Allergic reaction in people sensitive to mustard-family plants (rash, itching, wheeze)

Good to know:

Reports are scarce, so "few side effects" here really means "little has been recorded".

What is described is mild and gut-related, mainly loose stools, wind and stomach discomfort at larger doses.

The questions that would matter more have not been studied at all: effects on heart rhythm, safety in pregnancy, and safety for damaged kidneys. Stop taking it and get advice if anything unusual happens rather than waiting it out.

How much Tudri Surkh should you take?

• Recommended daily: No safe or effective dose has been established by research. Traditional Unani practice uses roughly 3 to 7 grams of dried seed a day, soaked in water or simmered into a decoction and split into two doses. That range comes from custom, not from testing. If you choose to use it, stay at the low end. Taking more does not make a traditional remedy work better and raises the chance of stomach upset.
• Best time of day: Traditionally taken twice a day, morning and evening. Seed soaked overnight is usually taken in the morning.
• With or without food: Usually taken between meals with plenty of water. If it upsets your stomach, take it with food. Keep it at least two hours apart from any prescription medicine, because the gel can slow absorption.
• Time to effect: Any soothing effect on a raw throat would be felt within minutes of taking it and would fade within an hour or two. No lasting effect has been shown for any use.
• How long to take it: Short courses only, of about one to two weeks. If your cough, throat pain or weakness has not improved in that time, stop and see a doctor rather than continuing. There is no information at all on long-term daily use.