Changes

To reduce the toxicity (''vikasi guna'') of ''Danti'' and ''Dravanti'', Charaka evolved a process using ''Pippali'' and honey paste which is to be besmeared over the roots and once again to be smeared with mud and fomented with steam after drying up in sun. Chakrapani observes that heat of fire and sunrays makes the root free from adverse effects. This could be quoted as a best example of purification process employed for the removal of toxicity - a novel concept mentioned by Charaka. In the medieval ages, ''Rasashastra'' texts adopted several purificatory procedures for various herbal and metallic drugs.  

To reduce the toxicity (''vikasi guna'') of ''Danti'' and ''Dravanti'', Charaka evolved a process using ''Pippali'' and honey paste which is to be besmeared over the roots and once again to be smeared with mud and fomented with steam after drying up in sun. Chakrapani observes that heat of fire and sunrays makes the root free from adverse effects. This could be quoted as a best example of purification process employed for the removal of toxicity - a novel concept mentioned by Charaka. In the medieval ages, ''Rasashastra'' texts adopted several purificatory procedures for various herbal and metallic drugs.  

=== Relevance of the concepts of Kalpa Sthana in the current clinical practices ===

=== Relevance of the concepts of [[Kalpa Sthana]] in the current clinical practices ===

''Vamana karma'' (emesis) and ''virechana karma'' (purgation) are mandatory before performing ''basti karma'' (enema), in order to promote health (i.e., for the patient to gain mass). Keeping this in view, the details about drugs employed in ''vamana'' and ''virechana karma'' are described in this section and the details about ''basti karma'' in the subsequent section, [[Siddhi Sthana]].

''Vamana karma'' (emesis) and ''virechana karma'' (purgation) are mandatory before performing ''basti karma'' (enema), in order to promote health (i.e., for the patient to gain mass). Keeping this in view, the details about drugs employed in ''vamana'' and ''virechana karma'' are described in this section and the details about ''basti karma'' in the subsequent section, [[Siddhi Sthana]].

For ''vamana karma'', ''Madanaphala'' is the main drug employed in the current clinical practice. But the rest of five drugs (i.e., ''Jimutaka'', ''Ikshvaku'', ''Dhamargava'', ''Vatsaka'', and ''Kritavedhana'') are not being prescribed. Charaka suggested the period of collection and procedure for extracting seed from the ''Madanaphala''. These procedures are not being followed currently.

For ''vamana karma'', ''Madanaphala'' is the main drug employed in the current clinical practice. But the rest of five drugs (i.e., ''Jimutaka'', ''Ikshvaku'', ''Dhamargava'', ''Vatsaka'', and ''Kritavedhana'') are not being prescribed. Charaka suggested the period of collection and procedure for extracting seed from the ''Madanaphala''. These procedures are not being followed currently.

In the purgative therapy the drug ''Trivrita'' is prescribed currently in the various dosage forms and ''Aragwadha'' and ''Danti'' are infrequently prescribed. Charaka suggested a procedure for extracting the pulp from the fruit of ''Aragwada''. He also described a process to reduce ''vikasi guna'' (causes looseness of tissues) of ''Danti'' root. Both these procedures are not in vogue. Sushruta suggested ''Triphala'' (3 Fruits namely ''Haritaki'', ''Vibitaka'', and ''Amalaki'') and ''Eranda Taila'' (Castor oil) as purgatives and are prescribed in the current clinical practice.  

In the purgative therapy the drug ''Trivrita'' is prescribed currently in the various dosage forms and ''Aragwadha'' and ''Danti'' are infrequently prescribed. Charaka suggested a procedure for extracting the pulp from the fruit of ''Aragwada''. He also described a process to reduce ''vikasi guna'' (causes looseness of tissues) of ''Danti'' root. Both these procedures are not in vogue. Sushruta suggested ''Triphala'' (three fruits, namely ''Haritaki'', ''Vibitaka'', and ''Amalaki'') and ''Eranda Taila'' (Castor oil) as purgatives and are prescribed in the current clinical practice.  

 

''Tilvaka'', ''Saptala'', ''Sankhini'', and ''Dravanti'' are the purgative drugs suggested by Charaka which are controversial and not being preferred in current practice.

''Tilvaka'', ''Saptala'', ''Sankhini'', and ''Dravanti'' are the purgative drugs suggested by Charaka which are controversial and not being preferred in current practice.

The procedures described by Charaka with regard to ''vamana'' and ''virechana karma'' are being followed religiously by Ayurvedic physicians of current times.

The procedures described by Charaka with regard to ''vamana'' and ''virechana karma'' are being followed religiously by Ayurvedic physicians of current times.

Ayurvedic classics have advocated to collect the medicinal plants according to part used and seasons in order to get desired pharmacological action and therapeutic benefits. Sushruta, Charaka and other acharyas advocate the collection of various parts of medicinal plants in different seasons. The logic behind such recommendations has been validated by recent modern scientific research.

Ayurvedic classics have advocated to collect the medicinal plants according to part used and seasons in order to get desired pharmacological action and therapeutic benefits. Sushruta, Charaka and other acharyas advocate the collection of various parts of medicinal plants in different seasons. The logic behind such recommendations has been validated by recent modern scientific research.

In a study the variations in the phytoconstituents of ''Ashwagandha'' root  was evaluated according to lunar cycles with regard to ''grishma'' and ''shishira ritu'' (summer and late winter season). In this study, total phenolic, flavonide and carbohydrate content of ''Ashwagandha'' root were found more in ''poornima'' (full moon day) samples. GAP (''Grishma Ashadha Poornima'', or the full moon night occurring in the ''Grishma-Ashadha'' season) samples showed maximum differentiation from rest of the samples with regards to TCA, TCW, TFW, MEx, WEX, pH etc. parameters. The ''Grishma-Jyeshtha Poornima'' (GJP) and GAP samples were found to be superior than ''Amavasya'' (new moon day) samples with regard to  functional groups and with anoloid content respectively (Ref. 2016 Ancient Science of Life) . Such type of studies validate the concept of seasonal collection of drug delineated in Ayurveda classics like [[Charaka Samhita]] and [[Sushruta Samhita]].

In a study the variations in the phytoconstituents of ''Ashwagandha'' root  was evaluated according to lunar cycles with regard to ''grishma'' and ''shishira ritu'' (summer and late winter season). In this study, total phenolic, flavonide and carbohydrate content of ''Ashwagandha'' root were found more in ''poornima'' (full moon day) samples. GAP (''Grishma Ashadha Poornima'', or the full moon night occurring in the ''Grishma-Ashadha'' season) samples showed maximum differentiation from rest of the samples with regards to TCA, TCW, TFW, MEx, WEX, pH etc. parameters. The ''Grishma-Jyeshtha Poornima'' (GJP) and GAP samples were found to be superior than ''Amavasya'' (new moon day) samples with regard to  functional groups and with anoloid content respectively (Ref. 2016 Ancient Science of Life) . Such type of studies validate the concept of seasonal collection of drug delineated in Ayurveda classics like [[Charaka Samhita]] and Sushruta Samhita.