Pathya shadangam kashaya is nothing but Pathyaksha dhatryadi kashaya. It is called Pathya shadangam kashaya because the total ingredients of the kashaya comes upto 8 including Guda/Jaggery but the first three ingredients are combined in to one ingerdients as Triphala and then it becomes Shadanga (six component) Kashaya (decoction). 

Ingredients of Pathya shadangam kashaya :

1. Hareetaki (Terminalia chebula)
2. Vibhitaki (Terminalia belerica)
3. Amalaki (Emblica officinalis)
4. Bhunimba (Swertia chirata)
5. Nisha/Haridra (Curcuma longa)
6. Nimba (Azadirachta indica)
7. Amruta (Tinospora cordifolia)

Indication of Pathya shadangam kashaya :

1. Sheersha Shoola
2. Bhru Shoola
3. Shankha Shoola
4. Karna Shoola
5. Ardha shiro ruja
6. Suryavartha
7. Shankhakam
8. Dantapaatam
9. Danta ruja
10. Naktaandya
11. Patala roga
12. Shukla roga
13. Chakshu pida

Anupana :

1. Guda/Jaggery

Reference:

1. Sharangadhara Samhita Madhyama khanda 2/143