Weighing Scales for Dravya Medicinal Substances
Weighing Scales for Dravya Medicinal Substances (Sanskrit: Tula Yantra / Tulasya) is an instrument used in diagnostic instruments. Precision weighing scales used for measuring exact quantities of medicinal substances (Dravya) according to Ayurvedic posology. Traditional scales used specific Ayurvedic weight units (Pala, Karsha, Tola, Ratti/Gunja).
| Sanskrit name | Tula Yantra / Tulasya |
|---|---|
| Ayurvedic category | Diagnostic Instruments |
Precision weighing scales used for measuring exact quantities of medicinal substances (Dravya) according to Ayurvedic posology. Traditional scales used specific Ayurvedic weight units (Pala, Karsha, Tola, Ratti/Gunja).
Where is it described in the classical texts?
Charaka Samhita Kalpasthana and Sharangdhara Samhita Purva Khanda describe detailed posology and weight measurements. Rasaratna Samuchaya and Rasa Tarangini describe Tula Yantra as essential Rasashastra equipment.
How is it used traditionally?
Precise measurement of herbs, minerals, metals, and other ingredients for Ayurvedic medicine preparation. Critical for Rasashastra (mineral/metal medicine) preparations where precise dosing is essential.
Traditional materials
- Brass (Pittala) balance beam and pans
- Iron weights
- Standard seeds (Gunja/Ratti) as reference weights
Modern variants
- Digital analytical balances
- Electronic precision scales
- Calibrated pharmaceutical weighing systems
Regulatory status
- India Cdsco: Weighing instruments regulated under Legal Metrology Act, not CDSCO. Must be calibrated and certified.
- Us Fda: Pharmaceutical scales are subject to FDA GMP requirements (21 CFR Part 211) for drug manufacturing but not classified as medical devices.
- Eu Mdr: Not classified as medical devices. Subject to EU Measuring Instruments Directive.
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.