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Kasis Bhasma

Kasis Bhasma is a bhasma, a mineral or metal preparation reduced to ash by repeated calcination.

Key facts
Substance typeMineral or metal preparation, not a plant
Also known asKasis Bhasma, KasisBhasma

Names and identification

LanguageName
EnglishKasis Bhasma

Key Phytochemical Constituents

  • Iron oxide (from calcination of ferrous sulfate)
  • Residual sulfate compounds
  • Trace copper and zinc
  • Organic compounds from herbal processing
  • Calcium and magnesium from processing media

How does it work?

  • Enhanced iron supplementation through calcined ferrous sulfate, supporting hemoglobin synthesis
  • Deepana (appetite stimulation) and Pachana (digestive fire strengthening) through iron-mediated metabolic enzyme activation in the gastrointestinal tract
  • Hepatoprotective activity, with antioxidant activity and cellular membrane stabilization, has been reported in studies of CCl4-induced liver toxicity.
  • Traditionally described as Raktavardhaka (blood-enhancing), attributed to its iron content

Which traditional uses are supported by research?

These summaries come from the source notes, which do not name the studies behind them.

  • Iron-deficiency anemia (Pandu Roga): traditionally used for Pandu Roga. Clinical evaluations have reported improved hemoglobin and ferritin levels without the GI side effects of conventional iron.
  • Liver disorders: traditionally used for liver disorders. Animal studies have reported hepatoprotective activity against CCl4-induced hepatotoxicity.
  • Digestive disorders (Agnimandya, Ajirna): traditionally used for its Deepana-Pachana properties. Clinical observations have reported improved appetite and digestion.

What do recent studies show?

No study for this section could be traced to a published paper. An absence here means we could not identify the source, not that no work exists.

Recent safety updates

  • PROCESSING: Classical texts hold that calcined Kasis Bhasma is less toxic than unpurified Kasisa, and that Shodhana and Marana are essential for safety.
  • PREGNANCY WARNING: POSSIBLY UNSAFE due to emmenagogue effects. Not recommended during pregnancy and breastfeeding.
  • LONG-TERM CAUTION: Like all iron preparations, prolonged unsupervised use may cause iron overload. Periodic monitoring recommended.

What is it made of?

Mineral/Elemental Profile

  • Starting material: Ferrous sulfate (Kasisa, green vitriol), converted to iron oxide by calcination
  • Iron (Fe): 62-92% in finished Kasisa Bhasma by atomic absorption spectroscopy across four batches (Rajput D, Tekale GS, Patgiri BJ 2011. Comparative study on Kasisa Bhasma prepared by two different methods. Ancient Science of Life. PMID 23284208)

Dosage forms and preparation

Dosage Forms: Bhasma

Standard Dosage: 125–250 mg

Optimal Timing: With honey or Triphala Kwatha; after meals to reduce GI irritation

Storage: Airtight, moisture-proof container (hygroscopic)

Marker Compounds: Iron oxide (Fe2O3), Sulfur compounds, Trace minerals

Vehicle (Anupana): Honey, Triphala Kwatha, or Mandura Bhasma combination

Reviewed by Dr. Awadesh Pratap Singh, BAMS, on 11 October 2026. What that review covered.

Consult a qualified vaidya before acting on anything here. Ayurvedic practice is prescribed to a person, not to a condition: the same dravya is given, withheld or substituted depending on your constitution, your agni, the season and what else you are already taking. A page cannot know any of that. Self-prescribing from a reference is how the wrong preparation, the wrong dose or the wrong anupana gets used.

Educational reference only. Nothing on this page is medical advice, a diagnosis, or a recommendation to take anything. Traditional uses and research findings are reported as published, not as claims about what any product does. If you take prescribed medication, raise any interaction with the prescriber rather than acting on a page. See our editorial standards.