Ayurveda is the ancient medical science of India. Many herbal, mineral and metallic drugs are being successfully used in treatment of various ailments. Tin (Vanga) in incinerated and processed form is being used in Ayurvedic medicines since thousands years. Vangeshwara Rasa and Swarnavanga are such popular Ayurvedic medicines made of Tin. Now day various queries regarding safety of metallic Ayurvedic drugs is being raised by various countries. Though Vangeshwara Rasa and Swarnavanga are time tested harmless, there is no documented data of safety and toxicity study of these drugs. This study elaborates the acute sub-acute and chronic toxicity study of Vangeshwara Rasa and Swarnavanga on experimental animals. The study proves the said drugs to be safe. This book will definitely be useful for Ayurveda clinicians and researchers.