The classical texts of Ayurveda are:
• Charaka Samhitha
• Susrutha Samhita
• Ashtanaga Samgraham
• Ashtanga Hridayam
• Sargadhara Samhita
• Bhishaga Ratnavali
These treatises contain many formulations that are the basis of all Ayurvedic pharmaceuticals. A number of Ayurvedic research institutes around the world have proven the efficacy of these formulations in the treatment of disease.