Indications
Revand Chini is Indian or Himalayan rhubarb root (Rheum emodi and related species), used in Unani and Ayurvedic medicine. It is traditionally used for constipation and sluggish digestion, loss of appetite, and as part of “blood purifier” preparations for skin complaints such as pimples. In small amounts it is traditionally used as a digestive tonic, and in larger amounts as a laxative. Scientific evidence for these uses is limited.
How It Works
The root contains anthraquinones, which stimulate the large bowel and produce a laxative effect, and tannins, which have an astringent (tightening) effect. In Unani medicine it is also believed to strengthen the liver and stomach.
Dosage and Administration
Take as directed on the label or by a registered Unani practitioner. It is usually found in combination preparations. Do not use it as a laxative for more than one week without medical advice. Drink enough water.
Interactions
- Long-term use can lower blood potassium, which increases the risk of side effects from Digoxin and heart rhythm medicines; diuretics and steroids add to this risk.
- It may increase the effect of blood thinners such as Warfarin.
- It may reduce the absorption of other medicines taken at the same time.
Contraindications
- Bowel blockage, unexplained stomach pain, or inflammatory bowel disease.
- Kidney stones or a history of kidney stones, because rhubarb contains oxalates.
- Pregnancy and breastfeeding.
- Children under 12 years, unless a practitioner advises it.
Side Effects
Possible effects include stomach cramps, loose stools and yellow or reddish urine (harmless). Long-term use can cause loss of fluid and salts (especially potassium), muscle weakness and dependence on laxatives.
Get urgent medical help if you have severe stomach pain, severe diarrhoea with weakness or dizziness, blood in the stool, pain in the back or side with blood in the urine, or signs of a serious allergic reaction such as swelling of the face or difficulty breathing.
Pregnancy and Lactation
Do not use during pregnancy, because stimulant laxative herbs may stimulate the womb, or during breastfeeding, because its safety is not established.
Precautions and Warnings
- See a doctor if constipation lasts more than one week, or if you have blood in the stool, a change in bowel habit or weight loss.
- People with heart, kidney or liver disease should talk to a doctor before use.
- Do not use rhubarb leaves; they are poisonous. Only the prepared root is used medicinally.
Overdose
Too much may cause severe diarrhoea, cramps, dehydration and low potassium. Seek medical help if a large amount has been taken.
Therapeutic Class
Unani herbal preparation (laxative and digestive herb).
Storage
Store below 30°C in a dry place, away from light and out of the reach of children.
Prepared by the Oshud Alo team from standard drug references. For information only; always follow your doctor's advice.