Kushta Faulad (Iron Kushta): Anaemia, Taqat Claims, Unmeasured Iron
Kushta faulad (calcined iron, lauh bhasma in Ayurveda) is iron that has been burnt with herbs and minerals over and over until it becomes a fine, dull powder a hakeem can put in a dose of honey. It is sold for anaemia, weakness and “mardana taqat”. The honest summary: it is iron, which can help only one thing, a real iron shortage; nobody can tell you how much iron is in a pinch of it; and in a country where roughly one adult in twenty carries the thalassaemia gene, blind iron is a risk, not a tonic.
The short version
- What it is: iron filings or iron scale, purified then calcined (burnt) repeatedly into iron oxide powder
- Names: kushta faulad, kushta-e-hadeed, kushta-e-khabsul hadeed; Ayurvedic lauh or loha bhasma; English “calcined iron”
- Sold for: anaemia, weakness after illness, “taqat”, liver and stomach weakness, white discharge
- What it can honestly do: supply iron to someone who is short of iron, in an unknown amount
- Main worries: unknown iron per dose, iron overload in thalassaemia carriers and haemochromatosis, mercury and arsenic listed in some recipes, child poisoning
- First step for anyone “weak”: a CBC and a ferritin test, not a kushta
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What is kushta faulad, and how is it made?
Faulad means steel and hadeed means iron. In Unani pharmacy a kushta is any metal or mineral “killed” by fire, so kushta faulad is iron that has been heated in a sealed clay crucible, cooled, ground, mixed with plant juices and heated again, through many cycles. The classical texts describe soaking the iron in aloe juice, lemon or the milky latex of the aak plant (Calotropis) between burnings. Each cycle is supposed to make the metal finer and “safer”.
Chemists who have tested the Ayurvedic twin of this product, lauh bhasma, find exactly what you would expect from burnt iron: iron oxides, mostly in the red ferric form with some ferrous, with the plant residues long gone. Marketed samples examined in one chemical evaluation ran at about 81 to 85 per cent iron by weight, the rest being sodium, potassium, calcium, silica and traces of other metals. More recent X-ray work shows the final powder is close to natural iron-oxide minerals such as haematite and the magnetite group.
So the “secret” of kushta faulad is not a secret at all. It is rust, made carefully.
Why “how much iron per dose” is the real problem
A labelled iron syrup or tablet tells you the elemental iron in each dose, and a doctor can match that to a child’s weight or an adult’s ferritin result. A kushta cannot. Three things decide how much iron your body actually gets from a pinch of calcined iron, and none of them is printed on the pack:
- Particle size. Finer powder dissolves more in stomach acid. Hand-ground kushta varies from batch to batch.
- Which oxide. Ferrous iron absorbs better than ferric. Burnt iron is mostly ferric.
- What you take it with. Honey, butter or milk changes absorption; so does tea drunk at the same time.
A hakeem who has used one maker’s kushta for twenty years develops a feel for it. A buyer picking a loose packet from a pansari has nothing to go on. That is why this page will not give you an amount, and why the pack or a qualified practitioner has to set it.
Anaemia, “taqat” and the male-strength claim
What the sellers say
Listings for well-known brands put anaemia first, then convalescence, liver weakness, stomach weakness, piles, spermatorrhoea and leucorrhoea. Social media adds “mardana taqat” and “khoon banata hai”.
In Unani thought iron is hot and dry, a muqawwi (strengthener) that thickens thin blood and firms a weak body. The kushta form was prized because raw iron filings were impossible to swallow, and because fire was believed to tame the harshness of the metal. Hakeems paired it with honey, murabba or a khamira so it would not irritate the stomach.
Our honest take Only for proven iron shortage, and even then a labelled product is better
Iron deficiency anaemia really does make people tired, breathless on stairs, pale, dizzy and low in drive, and iron really does fix those symptoms when iron is the cause. In that narrow sense the tradition is right. But “taqat” and sexual weakness have many causes, and iron fixes only one of them. A man with normal iron who takes kushta faulad for “strength” gets nothing except more iron, and more iron in a body that is already full is harmful. The mardana kamzori page explains why weak erections are a medical warning sign, not an iron problem.
There is no good clinical trial of kushta faulad against a standard iron medicine. The claim that calcined iron is “more bioavailable” rests on tradition and on laboratory descriptions of the powder, not on people being tested.
Kushta faulad vs iron tablets and syrup
| Question | Kushta faulad | Licensed iron medicine |
|---|---|---|
| Iron per dose | Unknown, varies by batch | Printed on the label |
| Other ingredients | Some recipes list mercury and arsenic compounds | Listed; no heavy metals |
| Dose for a child | Cannot be calculated by weight | Set by weight from the pack or a pharmacist |
| Quality checks | Depend on the maker; loose powder has none | Registered product, batch tested |
| Cost | Priced by “grade” (kalan/khurd), not by iron content | Priced per bottle or strip, iron content known |
A point worth sitting with: paying extra for a “kalan” (superior) kushta buys you more calcination cycles, more labour and perhaps a finer powder. It does not buy you more iron, and it still does not tell you how much iron you got.
Mercury and arsenic in the recipe: read the ingredient list
This surprises most buyers. Several seller listings for a well-known Indian-made kushta faulad print the classical formula, and alongside iron powder and aloe mucilage it lists para (mercury), shingarf (mercury sulphide) and hartal (an arsenic sulphide). These are traditional “helpers” in the calcination, and makers say the fire renders them harmless. Chemistry does not agree: metals do not burn away, they stay in the ash. Not every maker uses this formula, and a Pakistani product may list only iron and plant juices, so the only way to know is to read the pack. If the ingredient list is missing, or it says “and other herbs”, you cannot know what you are swallowing.
Our kushta heavy-metal page explains how lead, mercury and arsenic turn up in calcined preparations and what poisoning looks like. If you or a family member has taken any kushta for months, this guide to heavy-metal blood tests shows which test to ask for and how to read the report.
Iron overload: why Pakistan is the wrong place for blind iron
Pakistan has one of the highest thalassaemia burdens in the world. Published estimates put the beta-thalassaemia carrier rate at roughly 5 to 7 per cent of the population, which is more than ten million people, and about 5,000 children a year are born with the severe form. A carrier (thalassaemia minor) is usually healthy but has small, pale red cells and a mildly low haemoglobin. On a basic blood count that looks like iron deficiency. It is not. Give that person iron for months and the iron has nowhere to go; it builds up in the liver and heart.
The same applies to haemochromatosis, an inherited condition where the gut absorbs too much iron, and to anyone who has had repeated blood transfusions. For all of them, doctors advise avoiding iron tablets, iron tonics and iron-fortified products altogether. A loose powder of unknown iron content is the worst possible version of that mistake.
Which blood test to get before taking any iron
This is the single most useful thing on this page. Weakness, pallor and breathlessness have a test, and it is cheap and available in every district lab.
- CBC (complete blood count). Look at haemoglobin and MCV (red cell size). Low haemoglobin with small cells suggests iron deficiency or a thalassaemia trait; the next test tells them apart.
- Serum ferritin. This is the body’s iron store. Low ferritin confirms iron deficiency. A normal or high ferritin with a low haemoglobin means iron is not the problem, and taking iron would be wrong.
- If ferritin is normal but cells are small, ask for haemoglobin electrophoresis (the thalassaemia test). Carriers should know their status before marriage and before any iron product.
- If iron is low, ask why. Heavy periods, piles, a stomach ulcer, worms, coeliac disease and poor diet all cause it. Iron that is lost through bleeding needs the bleeding found.
- Recheck after 2 to 3 months on whatever the doctor gives you. Haemoglobin that does not rise means the diagnosis, not the dose, needs another look.
The pharmacist’s reading of black stool
Iron turns stool black or very dark green within a day or two. That is expected and harmless, and it is the same whether the iron came from a kushta or a tablet. The trap is that iron also hides the one black stool that matters: bleeding high in the gut, which is black, sticky and tar-like and often comes with dizziness, a racing heart or stomach pain. If black stool arrives with any of those, or you were anaemic before you ever started iron, stop guessing and see a doctor the same day. A stool blood test can tell iron-black from blood-black; your eye cannot.
Side effects, children and who must never take it
Thalassaemia carriers, haemochromatosis, anyone on regular transfusions: no iron products at all unless a haematologist prescribes them. Pregnancy: anaemia in pregnancy is common and serious, and it needs a doctor, a ferritin test and a labelled iron product, not an unmeasured powder that may list mercury. Breastfeeding: same rule. Children: never. Iron is one of the commonest causes of fatal accidental poisoning in young children; a toxic amount depends on body weight, and a kushta gives you no way to calculate it. Keep every iron product locked away. Stomach ulcer, inflammatory bowel disease, liver disease: ask a doctor first.
Expected effects: constipation, nausea, metallic taste, dark stool. Stop and get help for: vomiting, severe stomach pain, diarrhoea with blood, confusion or drowsiness after a child swallows any amount, or a metallic taste with tremor, gum changes or numb hands after long use (possible mercury or arsenic, see the heavy-metal page). Not for hakeem or kushta at all: black tar-like stool with dizziness, blood in stool or urine, breathlessness at rest, unexplained weight loss, jaundice, chest pain.
Price and fakes
Branded kushta faulad is sold in small 10 g bottles and as compressed tablets (qurs), and Indian listings at the time of writing price a bottle in the tens of rupees; Pakistani brand prices move and are best checked on the day. Loose “kushta” from a pansari drawer is cheaper still and is the riskiest form: there is no batch, no ingredient list and no way to know whether it is iron, rust from any source, or something coloured to look like it. If you are set on a kushta, buy a sealed branded pack with a DRAP enlistment number (Pakistan) or an AYUSH licence (India) and an ingredient list you can read. Compare it honestly with a licensed iron syrup: the syrup tells you the dose and costs about the same per month.
Gold, silver and pearl kushtas raise a different set of questions, covered in our kushta tila, nuqra and marwareed guide. For the wider picture of heavy metals in traditional products, see heavy metals in herbal, Ayurvedic and Unani medicine. More explainers like this live in Unani & Herbal, Decoded.
Bottom line
Kushta faulad is iron oxide made the slow way. Iron helps iron deficiency and nothing else. Because nobody can tell you the iron in a dose, because some recipes carry mercury and arsenic, and because a large slice of Pakistan carries a gene that makes extra iron harmful, the sensible order is: CBC and ferritin first, diagnosis second, a labelled iron product if iron is actually low, and a kushta only if a qualified practitioner you trust insists and you have read the ingredient list.
Kushta faulad: the questions people search
Kushta faulad kya hai?
It is iron that has been purified and burnt repeatedly with plant juices until it becomes a fine iron-oxide powder. Unani pharmacy calls any metal prepared this way a kushta. It is the same idea as Ayurvedic lauh bhasma.
Kushta faulad in English?
Calcined iron or incinerated iron. “Faulad” is steel and “hadeed” is iron, so kushta-e-hadeed and kushta faulad are the same class of product.
Kushta faulad ke fayde kya hain?
The only benefit with a real basis is supplying iron to someone who is short of it, which can lift tiredness, pallor and breathlessness caused by iron deficiency. The amount of iron per dose is unknown, so a labelled iron medicine does the same job more safely.
Kushta faulad benefits for male?
None beyond correcting iron deficiency. “Mardana taqat” and low drive have many causes, and iron helps only when iron is low. A man with normal iron gains nothing and risks overload. Weak erections deserve a doctor, because they can be an early sign of diabetes or heart disease.
Kushta faulad side effects?
Constipation, nausea, a metallic taste and black stool are expected from any iron. The serious risks are iron overload in people who do not need iron, unknown dosing, and mercury or arsenic compounds listed in some classical formulas.
Kushta faulad vs iron tablet: which is better?
A licensed iron medicine states the iron content, is batch tested and can be dosed by weight for a child or by ferritin for an adult. A kushta can do none of that. For a proven iron deficiency the labelled product is the better tool.
Can kushta faulad fix anaemia on its own?
No product fixes “anaemia” as such, because anaemia has many causes. If the cause is iron deficiency, iron corrects it over two to three months, whatever the source. If the cause is thalassaemia trait, B12 or folate shortage, bleeding or chronic disease, iron does nothing and may harm.
Is kushta faulad safe for children?
No. Iron is a leading cause of fatal accidental poisoning in small children, and a kushta cannot be dosed by weight. A child’s anaemia needs a paediatrician, a blood test and a labelled iron product measured from the pack.
Kushta faulad in pregnancy?
Avoid it. Pregnancy anaemia is common and matters for mother and baby, so it needs a doctor, a ferritin result and a measured iron product. Some kushta recipes list mercury and arsenic compounds, which have no place in pregnancy.
Hamdard kushta faulad ke fayde?
Brand listings name anaemia first, then convalescence, liver and stomach weakness, piles, spermatorrhoea and leucorrhoea. Only the iron-deficiency use has a mechanism behind it. Read the ingredient list on the specific pack; Indian listings of this formula include mercury and arsenic compounds alongside iron.
Kushta faulad price in Pakistan?
Prices change and differ between brands and grades, so check on the day. Branded 10 g bottles and qurs strips are inexpensive; “kalan” grades cost more for extra calcination, not for extra iron. A licensed iron syrup is in the same price range and tells you the dose.
Which test before taking iron?
A CBC and a serum ferritin. Low haemoglobin with low ferritin means iron deficiency. Low haemoglobin with normal ferritin and small red cells points to thalassaemia trait, and iron would be the wrong move; ask for haemoglobin electrophoresis.
Why does kushta faulad make stool black?
Unabsorbed iron oxidises in the gut and darkens stool. It is harmless by itself. Black, sticky, tar-like stool with dizziness or stomach pain can be bleeding and needs a doctor the same day.
Can a thalassaemia carrier take kushta faulad?
No, not without a haematologist’s advice. Carriers have small pale cells that mimic iron deficiency on a basic count but their iron stores are usually normal or high, so added iron accumulates in the liver and heart.
Does kushta faulad contain lead or mercury?
It should contain only iron oxide, but some classical formulas list mercury and an arsenic sulphide as processing ingredients, and loose unbranded powders have been found contaminated. Only a lab test on the product, or a heavy-metal blood test on a long-term user, can answer for a specific batch.
Sources
- Keshri A, Verma PR, Prasad CM. Further studies on chemical evaluation of lauha bhasma III. Ancient Science of Life, 1996
- Bhargava SC, Reddy KR, Sastry GV. Identification studies of Lauha Bhasma by X-ray diffraction and X-ray fluorescence. AYU, 2012
- Exploring the role of consanguinity in thalassemia prevalence in Pakistan. Annals of Medicine and Surgery, 2025
- NHS: Side effects of ferrous sulfate (dark stool, constipation, when to seek help)
- Poison Control (US): Iron poisoning in children
- Seller listing of a branded Kushta Faulad showing the printed classical ingredient list (iron, mercury, arsenic sulphide, aloe, Calotropis latex), accessed October 2026