Dravyaguna is the basic subject of Ayurveda having eight broad branches. It may be called as the Materia Medica of Ayurveda . This series by a renowned physician and a versatile scholar of Ayurveda is the best in English language.
Volume 1: Fundamental Principles of Pharmacotherapeutics in Ayurveda
Volume 2: Study of the Essential Medicinal Plants in Ayurveda
Volume 3: Knowledge of Animal Drugs and Foods in Ayurveda
Volumes 4 & 5: Dravyaguna Vijnana