Pradarantak Lauh
Pradarantak Lauh is a classical compound tablet (vati) containing Loha Bhasma and other bhasmas. Referenced in Bhaishajya Ratnavali; recognized as a classical Ayurvedic formulation under the Drugs and Cosmetics Act, 1940; manufactured by licensed Ayurvedic pharmacies under AYUSH guidelines.
| Substance type | Mineral or metal preparation, not a plant |
|---|---|
| Also known as | Pradarantak Lauh, PradarantakLauh |
| Pharmacopoeia status | Referenced in Bhaishajya Ratnavali; recognized as a classical Ayurvedic formulation under the Drugs and Cosmetics Act, 1940; manufactured by licensed Ayurvedic pharmacies under AYUSH guidelines |
Names and identification
| Language | Name |
|---|---|
| English | Pradarantak Lauh |
Where is it described in the classical texts?
Bhaishajya Ratnavali, Stri Rogadhikara (Gynecological Disorders Chapter), Verses 75-79
How does it work?
- Loha Bhasma is the iron-bearing ingredient, traditionally used for anemia secondary to excessive menstrual blood loss
- Tamra Bhasma (copper calx) supports copper-dependent enzymes essential for iron metabolism and ceruloplasmin synthesis
- Abhraka Bhasma (mica calx) provides trace minerals and is classically regarded as a Rasayana (rejuvenative) for uterine tissue
- Trikatu (Shunthi + Maricha + Pippali) enhances absorption of mineral Bhasmas and stimulates Agni (digestive fire)
- Triphala components are traditionally described as having hemostatic, anti-inflammatory, and antioxidant effects
- Varatika Bhasma (cowrie shell calx) provides calcium and is traditionally described as a uterine tonic for excessive bleeding
Which traditional uses are supported by research?
These summaries come from the source notes, which do not name the studies behind them.
- Menorrhagia and metrorrhagia (Pradara/excessive menstrual bleeding): traditionally used for excessive menstrual bleeding. Clinical observations have reported reduced menstrual blood loss and improved hemoglobin.
- Leucorrhea (Shweta Pradara): used in classical practice as a gynecological application for leucorrhea. Reports from clinical practice have described improvement in vaginal discharge and associated symptoms.
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
- Contains Shuddha Haratala (purified arsenic trisulfide) - requires strict medical supervision and limited treatment duration
- Heavy metal content (arsenic, copper, tin) necessitates periodic monitoring of liver and kidney function during treatment
- Iron overload risk with prolonged unsupervised use; serum ferritin monitoring essential beyond 4-6 weeks
- Contraindicated in pregnancy, hemochromatosis, Wilson’s disease, and hepatic/renal impairment
- Must be prepared according to classical Shodhana (purification) protocols to ensure toxic metal conversion to safer forms; quality-tested products from licensed manufacturers only
What is it made of?
Mineral/Elemental Profile
- Primary component: Lauha Bhasma with Tamra, Haritala (Haratala), Vanga, Abhraka and Varatika Bhasmas in equal parts, together with Trikatu, Triphala and other herbs (Ayurvedic Formulary of India, Part I, entry 21:5; Bhaishajya Ratnavali, Strirogadhikara 75-76)
- Note: Composition varies by specific preparation method
Dosage forms and preparation
Dosage Forms: Vati
Standard Dosage: 250 mg twice daily
Optimal Timing: After meals with Ashoka Kwatha or honey
Storage: Airtight container
Marker Compounds: Iron oxide
Vehicle (Anupana): Ashoka Kwatha, Lodhra Kwatha, or rice water
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.