Critical Appraisal of Gandhaka Rasayana

Among the various Gandhakakalpa, Gandhaka Rasayana stands apart as a remedy par excellence which is extensively used in skin diseases. Other than its role as a rasayana drug, it is widely used in broad spectrum of clinical conditions such as skin diseases, in respiratory disorders, arthritis, allergies, diabetes etc. In the present study an attempt was made to compile and critically analyse all the available references of Gandhaka Rasayana in terms of their composition, method of preparation, dose and indications from various texts. Fifteen formulations are available across various texts in the name of Gandhaka Rasayana in various dosage forms like churna, leha and druti; churna being the commonest among them. Bhavana with various herbal drug is a common method utilized in the preparation of Gandhaka Rasayana. All the formulations irrespective of their variations in the ingredients are well acclaimed for rejuvenation property and skin diseases.