Abstract
The standardization of Ayurvedic classical dosage forms has been an area of academic, research, industrial and regulatory interests. It is crucial to understand the basic principles and rationality of these dosage forms for their therapeutic relevance while adapting to newer technologies for its right pharmaceutical and clinical use. Kwatha Kalpana -frequently referred to as decoctions - aqueous extraction of a group of herbs, is one of the most commonly used classical dosage forms where the therapeutic attributes are extracted from the group of botanicals into water, with the use of heat. Though clinically effective, it is seldom used due to the cumbersome preparatory method, short shelf life and poor palatability. This elaborate review covers historical and basic concepts of the dosage form, its salient features, nuances of classical preparations, traditional and newly developed methods of preparations. This paper covers intricate classical information and specifics about Kwatha, the herbal decoction.
Highlights
Kwatha Kalpana - decoction or infusion is a well-known Ayurvedic dosage form based on the principle of boiling and obtaining water-soluble constituents from herbs
As a dosage form, Kwatha, the herbal decoctions have a wide range of therapeutic uses in the treatment of various diseases
Need for the Review of Ayurvedic Dosage Forms ‘Bhaishajya Kalpana’ – Ayurvedic pharmaceutics is a well-developed sub-discipline of Ayurveda covering more than 40 pharmaceutical dosage forms to provide a variety of therapeutic solutions
Summary
Kwatha Kalpana - decoction or infusion is a well-known Ayurvedic dosage form based on the principle of boiling and obtaining water-soluble constituents from herbs. Decoction is one of the panchvidha kashaya kalpana [1] i.e. group of five main categories of Ayurvedic pharmaceutics: the others being Swarasa - fresh juice, Kalka - paste, Hima - cold infusion and Phanta - hot infusion. Need for the Review of Ayurvedic Dosage Forms ‘Bhaishajya Kalpana’ – Ayurvedic pharmaceutics is a well-developed sub-discipline of Ayurveda covering more than 40 pharmaceutical dosage forms to provide a variety of therapeutic solutions. It describes all the details, including identification of raw materials and the meticulous methods of preparation
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