Changes

The potency of active principles in herbs is influenced by direction of movement of the sun in different seasons. Herbs with cold potency (souamya or sheeta) or mild actions shall be collected in cold seasons. Those with hot potency (agneya) shall be collected in the hot season. [Su.Sa. [[Sutra Sthana]] 36/6]<ref name=Susruta/>

The potency of active principles in herbs is influenced by direction of movement of the sun in different seasons. Herbs with cold potency (souamya or sheeta) or mild actions shall be collected in cold seasons. Those with hot potency (agneya) shall be collected in the hot season. [Su.Sa. [[Sutra Sthana]] 36/6]<ref name=Susruta/>

d) Storage of medicines (dravyasamgrahana): Guidelines for processing and storing the collected items are described based on directions. The construction of storehouses in the eastern or northern direction with relation to the city area is advised. [Su.Sa. Sutra Sthana 36/17]<ref name=Susruta/> Body part or geographical location (desha): The body parts affected in pathogenesis of disease is examined and treated based on direction. The geographical habitat of the person is important for knowing the status of health and prevalent diseases in that region.[Cha. Sa. [[Vimana Sthana]] 8/84] The place of collection of best quality drugs are explained. For example, the drug Hydnocarpus laurifolia (dennst.) Sleumer (Tuvaraka) from the western seashore is the best quality.[Su.Sa. Chikitsa Sthana 13/34]<ref name=Susruta/> Phyllanthus fraternus Webster (Tamalaka), Musa x paradisiaca L. ([[Kadali]]), Holostemmaada-kodien Schult. (Jivanti) etc. collected from the western part of the country possess better quality. Haimavata and Dakshina Patha are the names given to the drugs found in northern region and southern region of India respectively. The tree Dipterocarpus turbinatus C.F.Gaertn (Aswakarna) is found over western part of the country. [Su. Sa. Chikitsa Sthana 2/56-65], [Su.Sa. Chikitsa Sthana 19/33-35] The fruit Salvadora persica L. (Pilu) is found in north India. [Cha.Sa. [[Siddhi Sthana]] 7/63] In the context of [[rasayana]], west direction (pashchima) is the best. [Su.Sa. Sutra Sthana 5/7]<ref name=Susruta/>

d) Storage of medicines (dravyasamgrahana): Guidelines for processing and storing the collected items are described based on directions. The construction of storehouses in the eastern or northern direction with relation to the city area is advised. [Su.Sa. Sutra Sthana 36/17]<ref name=Susruta/> Body part or geographical location (desha): The body parts affected in pathogenesis of disease is examined and treated based on direction. The geographical habitat of the person is important for knowing the status of health and prevalent diseases in that region.[Cha. Sa. [[Vimana Sthana]] 8/84] The place of collection of best quality drugs are explained. For example, the drug Hydnocarpus laurifolia (dennst.) Sleumer (Tuvaraka) from the western seashore is the best quality.[Su.Sa. Chikitsa Sthana 13/34]<ref name=Susruta/> Phyllanthus fraternus Webster (Tamalaka), Musa x paradisiaca L. ([[Kadali]]), Holostemmaada-kodien Schult. (Jivanti) etc. collected from the western part of the country possess better quality. Haimavata and Dakshina Patha are the names given to the drugs found in northern region and southern region of India respectively. The tree Dipterocarpus turbinatus C.F.Gaertn (Aswakarna) is found over western part of the country. [Su. Sa. Chikitsa Sthana 2/56-65]<ref name=Susruta/>, [Su.Sa. Chikitsa Sthana 19/33-35]<ref name=Susruta/> The fruit Salvadora persica L. (Pilu) is found in north India. [Cha.Sa. [[Siddhi Sthana]] 7/63] In the context of [[rasayana]], west direction (pashchima) is the best. [Su.Sa. Sutra Sthana 5/7]<ref name=Susruta/>

===Application of direction in pharmacy===

===Application of direction in pharmacy===