# Damaru TaborHourglass Apparatus Sublimation Device

> Damaru TaborHourglass Apparatus Sublimation Device (Sanskrit: Damaru Yantra) is an instrument used in preparation and pharmaceutical equipment. Two pots of equal size placed mouth-to-mouth (resembling a Damaru/tabor drum), with the joint sealed by mud-cloth-plaster. The substance in the lower pot is heated, and sublimate collects on the inner surface of the upper (cooler) pot.

## Key facts

- **Sanskrit name:** Damaru Yantra
- **Ayurvedic category:** Preparation and Pharmaceutical Equipment

Two pots of equal size placed mouth-to-mouth (resembling a Damaru/tabor drum), with the joint sealed by mud-cloth-plaster. The substance in the lower pot is heated, and sublimate collects on the inner surface of the upper (cooler) pot. Used for Urdhwa Patana (upward sublimation).

## Where is it described in the classical texts?

Rasaratna Samuchaya; Rasa Tarangini; Rasaprakasha Sudhakara. Specifically described for sublimation of mercury (Parada) and arsenic compounds (Somala/Haratal).

## How is it used traditionally?

Urdhwa Patana (upward sublimation/distillation) of volatile substances, particularly mercury (Parada), sulfur ([Gandhaka](/glossary/concepts-a-m/#gandhaka)), arsenic compounds, and other low-boiling-point substances used in Rasaushadhi preparation.

## Traditional materials

- Two earthen pots (Ghata)
- Mud-cloth-plaster (Mrit-Vastra-Lepana) for sealing
- Iron tripod stand

## Modern variants

- Glass sublimation apparatus
- Metal sublimation chambers
- Vacuum sublimation units

## Regulatory status

- **India Cdsco:** Not classified as a medical device. Pharmaceutical equipment under AYUSH GMP.
- **Us Fda:** Subject to cGMP requirements for drug manufacturing.
- **Eu Mdr:** Not classified as a medical device.

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Published by Age Ayurveda in the Nighantu. Educational reference only, not medical advice.
Incorporates material from the Amidha Ayurveda Herb Database under CC BY 4.0.