Educational information, not medical advice — ask your doctor or midwife.
Drumstick cassia is a small tree of the West African savannah, Cassia sieberiana. Healers use the bark of the trunk and the root. Hausa speakers call it marga.
The bark is most often boiled into a brown, bitter brew. Tradition used it for constipation, belly pain, fever and sores. It holds anthraquinones, the same family of compounds found in senna.
Here is the honest verdict on the evidence. Almost all testing has been done in test tubes and in animals. Long use in tradition is not proof that it works, and not proof that it is safe.
The laxative effect is the one thing that fits what we know about its chemistry. Even that has not been measured in a proper human trial.
No one has shown how this bark works in the human body.
The bark holds anthraquinones. In animals, compounds of this type pull water into the bowel and speed it along. That is the likely reason for the loosening effect people report.
In laboratory tests, bark extracts slow the growth of some bacteria and fungi. Whether that happens inside a person is not known.
In rodents, extracts have eased pain signs and lowered fever. Rodent results often fail to carry over to people.
Some animal work also reports lower blood sugar after dosing. This has not been checked in human trials, so it should not be leaned on.
Dried bark, sold loose or in broken pieces, is the usual form.
Bark decoction: the bark is boiled in water, then strained. This is the common village preparation.
Root bark: handled the same way. Tradition leaned on it for pain and fever.
Powder: dried bark ground fine. It is sometimes stirred into water or food.
Wash or bath: the cooled brew was applied to sores and skin.
Capsules and tinctures turn up in some herb shops outside West Africa. None of these are standardised. The label often will not tell you how much bark you are getting.
Drumstick cassia has deep standing across the West African savannah belt. Healers in Nigeria, Mali, Senegal, Burkina Faso and Ghana used the bark and the root.
Hausa speakers knew it as marga. The boiled bark was given for constipation, belly pain, fever and skin sores.
Some communities used it for malaria symptoms, and washed wounds with the cooled brew. Much of what we know comes from field surveys of healers, not from trials.
This page describes those past uses. It does not suggest you copy them.
Stop and see a doctor if you get severe cramping, or diarrhoea lasting more than two days.
Get urgent care for any of these:
- Blood in your stool, or black tarry stool - Severe belly pain, or a swollen hard belly - Dizziness, fainting or a racing heart - Yellow eyes or skin, or dark urine with no clear cause - Signs of fluid loss, such as very little urine and extreme thirst
See a doctor straight away for fever with chills in a malaria area. Do not wait on a herbal brew.
In the United States, the United Kingdom and the European Union, drumstick cassia bark is not approved as a medicine. Where sold, it is traded as a plant material or supplement, and no regulator has checked its claims. In West African countries it is a common market herb sold by traders and healers.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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