Chapala

TRADITIONAL VIEW, WITH SAFETY LIMITS

What the texts say Chapala does

• Rasayana — rejuvenative
• Deepana — kindles digestion (appetiser)
• Kushthaghna — used in skin disease

What the evidence says. Traditional use is documented in the Rasashastra texts. Modern evidence about this dravya is largely toxicological rather than therapeutic.

Side effects and limits

The safety of Chapala cannot be stated cleanly, because the name is read as bismuth by some authorities, as antimony by others and as a selenide by others again - three elements with three different toxicologies. Antimony and selenium are both systemically toxic at small doses; bismuth is far less so but causes encephalopathy in accumulation. This is a dravya where the identity is the safety question. Anyone pregnant, on medication or managing a diagnosed condition should speak to a doctor or a qualified practitioner first.

Avoid or ask first: Absolutely not used in the raw, unprocessed state.; Not used at all where the mineral supplied has not been chemically identified.

A traditional classification, not a recommendation. The full safety record is below.

AS THE CLASSICAL TEXTS AND THE API PRESCRIBE

Recorded from the classical literature. In current practice the article is very rarely prepared, and its identity is unsettled.

Reported from Sharangadhara Samhita and the Ayurvedic Pharmacopoeia of India. Laisha states what the texts prescribe; it does not recommend. No quantity here is adjusted for a particular person — not for agni, koshtha, bala, age, pregnancy, kidney or liver function, or anything already being taken.

Katu and tikta with ushna virya and katu vipaka, on the bismuth identification. A different mineral would give a different profile, which is the practical consequence of the unsettled identity.

These are the actions the classical texts record. They are statements about what the tradition holds, and this library does not restate them as findings about a human body.

Chapala, Chanchala and Kshipra all mean quick or unsteady, and all record the same property: it melts at once.

This is an unsettled identification rather than an adulteration problem. Bismuth, antimony and selenium minerals are all supplied as Chapala, and they are three different elements with three different toxicologies. A practitioner should treat a sample of unknown identity as a sample that cannot be used, because the wrong reading here is not a variant of the drug but a different poison.

Given in the texts as a soft, easily fusible, lustrous mineral. It is most often identified with bismuth or a bismuth ore, and some authorities read it as a selenide or as a variety of antimony. The identification is not settled.

A WAY TO REMEMBER IT

Chapala means unsteady or quick, for a mineral that melts the moment it is heated. The name describes a behaviour rather than an appearance, which is part of why the identification has never been settled from the texts alone.

Chapala is listed among the eight maharasa of the Rasa Ratna Samuccaya. Which mineral the texts meant is exactly what is no longer settled, and it is the least prepared of the eight for that reason.

Constituents. Given in the texts as a soft, easily fusible, lustrous mineral. It is most often identified with bismuth or a bismuth ore, and some authorities read it as a selenide or as a variety of antimony. The identification is not settled.

• This is a study and clinical reference for practitioners and students. The matra and anupana it records are what the classical texts and the Ayurvedic Pharmacopoeia of India PRESCRIBE - Laisha reports them, it does not recommend them. They are not a prescription for any particular person, and they are not adjusted for your age, agni, koshtha, bala, pregnancy, kidney or liver function, or anything else you are already taking. Only a qualified practitioner who has examined you can do that.
• No mineral or metallic dravya is used raw. Every quantity recorded here refers to the processed article after shodhana and, where the texts require it, marana - never to the raw mineral.
• Traditional classification is recorded as what the classical texts say, with the text and the place in it named so it can be checked. It is not restated as a finding about a human body.
• Nothing here replaces a qualified Ayurvedic practitioner or a doctor.