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Mangcho

Traditionally used for: Short-term relief of hard stool, under a practitioner's care. Hard stool that will not pass; A hard, full, bloated belly.

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What is Mangcho? Mangcho is a mineral salt used in Korean herbal medicine. Its Latin name is Mirabilitum (Natrii sulfas). It is also called mirabilite, or Glauber's salt. It is used as a strong laxative. Healers give it when stool will not pass and the belly feels hard and full. In Sasang medicine it is matched to the Soyangin body type. The main chemical in it, sodium sulfate, does pull water into the gut. But we found no human trials of Mangcho itself. Long use in the past is not proof that it works. How does Mangcho work? Mangcho acts as an osmotic laxative (one that pulls water into the bowel). The salt is not taken up well by the gut. It stays there and draws in water, so stool softens and the bowel pushes it out. This is simple chemistry, and it is why the effect is fast. Old Korean texts use other words. They say it drains heat and softens hard masses, which is a way of speaking, not a tested mechanism. Claims beyond the bowel are not backed by trials. On the skin, a strong salt soak may draw fluid out of swollen tissue. That idea has not been well tested in people. What forms does Mangcho come in? You will most often meet Mangcho as white crystals or white powder. You stir it into warm water or into a finished herb tea. Forms include raw crystal, refined crystal, weathered powder, and mixed formulas. Mangcho is not boiled. It is stirred in at the end, once the tea is off the heat. It is used outside the body too. A warm salt rinse is used for the mouth or throat. A soaked cloth is laid on hot, swollen skin. Where it comes from: Mangcho comes from classical East Asian drug lore. It appears in early Chinese drug texts and passed into Korean practice with them. It is listed in the Donguibogam of 1613, Korea's best known medical book. The same salt was used in Europe from the 1600s as Glauber's salt. Sasang medicine, a Korean system from the 1890s, ties Mangcho to the Soyangin body type.

Helps

What does Mangcho help with? Constipation (hard stool that will not pass): This is the main and oldest use. Sodium sulfate pulls water into the bowel, which softens stool and sets off a bowel movement, usually a watery one. The salt chemistry is well understood. What is missing is a trial of Mangcho as sold, at Korean doses, in people. Modern medicine uses purified sodium sulfate drinks before bowel scans, but those are different products with different amounts. A hard, full, bloated belly: Traditional Korean and Chinese texts pair Mangcho with other herbs for a tight, hard belly with no stool. The relief is thought to come from clearing the bowel. There is no trial evidence for this use. Belly pain with fever, vomiting or no wind passing can mean a blocked bowel. That needs a doctor, not a laxative. Sore throat and mouth sores (traditional rinse, used outside the body): A weak, cooled salt solution is used as a gargle or mouth rinse in classic practice. Any comfort is likely the same mild effect you get from any salt water rinse. We found no human trials of a Mangcho rinse. Do not swallow the rinse, as swallowing gives you a laxative dose you did not plan on. Hot, swollen skin lumps (traditional compress, used outside the body): Old texts describe a salt paste or soaked cloth laid on hot, swollen skin to soften and cool it. This rests on tradition alone, with no trials to support it. Red, hot, spreading skin can be an infection. See a doctor rather than treating it at home. Swollen, over-full breasts during breastfeeding (traditional compress only): A Mangcho compress on the breast is a folk use in East Asia for painful, over-full breasts. There is no trial evidence for it. Do not take Mangcho by mouth while breastfeeding. A blocked duct with fever needs medical care, as it can turn into an infection.

Mangcho

Quick Facts

  • What it is: Mangcho is a mineral salt (sodium sulfate, also called Glauber's salt) used in Korean medicine as a strong laxative.
  • Main uses: Hard stool that will not pass, A hard, full, bloated belly, Traditional mouth and throat rinse, Traditional compress for hot, swollen skin
  • Best for: Short-term relief of hard stool, under a practitioner's care
  • Active ingredients: Sodium sulfate, Small amounts of magnesium sulfate, Small amounts of sodium chloride and calcium salts
  • Forms: Raw crystal, Refined crystal, Weathered powder, Part of a mixed herb formula, External soak or compress
  • Time to effect: Usually 30 minutes to 6 hours, often as a watery stool.
  • Side effects: Cramps and watery stool are expected; heavy fluid loss and low potassium are the real dangers.
  • Pregnancy & breastfeeding: Avoid: reported to act on the womb.

Educational information, not medical advice — ask your doctor or midwife.

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What is Mangcho?

Mangcho is a mineral salt used in Korean herbal medicine. Its Latin name is Mirabilitum (Natrii sulfas). It is also called mirabilite, or Glauber's salt.

It is used as a strong laxative. Healers give it when stool will not pass and the belly feels hard and full. In Sasang medicine it is matched to the Soyangin body type.

The main chemical in it, sodium sulfate, does pull water into the gut. But we found no human trials of Mangcho itself. Long use in the past is not proof that it works.

How does Mangcho work?

Mangcho acts as an osmotic laxative (one that pulls water into the bowel). The salt is not taken up well by the gut. It stays there and draws in water, so stool softens and the bowel pushes it out.

This is simple chemistry, and it is why the effect is fast. Old Korean texts use other words. They say it drains heat and softens hard masses, which is a way of speaking, not a tested mechanism.

Claims beyond the bowel are not backed by trials. On the skin, a strong salt soak may draw fluid out of swollen tissue. That idea has not been well tested in people.

What forms does Mangcho come in?

You will most often meet Mangcho as white crystals or white powder. You stir it into warm water or into a finished herb tea.

Forms include raw crystal, refined crystal, weathered powder, and mixed formulas. Mangcho is not boiled. It is stirred in at the end, once the tea is off the heat.

It is used outside the body too. A warm salt rinse is used for the mouth or throat. A soaked cloth is laid on hot, swollen skin.

Where it comes from:

Mangcho comes from classical East Asian drug lore. It appears in early Chinese drug texts and passed into Korean practice with them. It is listed in the Donguibogam of 1613, Korea's best known medical book.

The same salt was used in Europe from the 1600s as Glauber's salt. Sasang medicine, a Korean system from the 1890s, ties Mangcho to the Soyangin body type.

Who should avoid Mangcho?

  • Do not use if you are pregnant, as a strong purge can set off womb contractions and may put the pregnancy at risk
  • Do not use if you are breastfeeding and taking it by mouth
  • Do not use if you have, or may have, a blocked bowel (a blockage that stops stool moving)
  • Do not use if you have belly pain with fever, vomiting or no passing of wind that a doctor has not checked
  • Do not use if you have kidney disease or your kidneys work poorly
  • Do not use if you have heart failure, hard-to-control high blood pressure, or swelling that needs a low-salt diet
  • Do not use if you take a water pill (diuretic), digoxin (a heart drug) or lithium (a mood drug)
  • Do not use if you take a medicine that can upset heart rhythm, such as sotalol or amiodarone
  • Do not use if you have low potassium (low levels of a blood salt your heart and muscles need) or you are already dried out
  • Do not use if you have Crohn's disease or ulcerative colitis (long-term swelling and sores in the gut)
  • Do not use if you are giving it to a child, unless a doctor has told you to
  • Do not use if you are frail or elderly, unless a doctor or Korean medicine practitioner is guiding you
  • Do not use if you are an unrefined mineral grade of unknown source, because raw mineral can carry traces of heavy metals
  • Do not swallow a Mangcho mouth rinse or compress solution

When should you see a doctor?

See a doctor the same day if you have belly pain that keeps getting worse, a swollen belly with vomiting, fever, or you pass no stool and no wind at all.

Get urgent care if you feel faint or dizzy when you stand, your heart flutters or races, your muscles feel very weak, you stop passing urine, or you cannot keep water down. These are signs of heavy fluid and salt loss.

Also call your doctor if you see blood in the stool, if constipation lasts more than two weeks, or if your bowel habit has changed and you do not know why.

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