REVIEW OF AYURVEDIC DOSAGE FORM: VATI KALPANA

Bhaishajya Kalpana mainly deals with the preparation of different medicine which includes Pancha vidha Kshaya Kalpana (primary preparations) and its Upkalpana (secondary preparations). Pancha vidha kashaya kal-panas being the primary preparations and the most widely used formulations as a starting dosage form as well as a base for many different dosage forms. Vati Kalpana is a derived form of Kalka Kalpana and is one of the sali-ent secondary preparations in Ayurveda Pharmaceutics. This is widely used in the pharmaceutical world of both Ayurveda and modern science. Acharya Sharangdhara has depicted various synonyms of Vatikalpana i.e Gutika, Vati, Modaka, Vatika, Pindi, Guda, Varti etc. On the basis of preparation, it is of two types of Sagni and Niragni Vati. For the preparation of Vati, three ingredients are necessary i.e., fine powder, binding substance and Bha-vana Dravya. The general dose of Vati is one Karsha (12gm) and also depends upon Kostha and Agni of the pa-tient. The shelf life is 2 years for Vati which consist of herbal drugs and an indefinite time period for the pills made of minerals. In modern science, it can be compared with tablets, pills, capsules etc. which are solid dosage forms and can be easily administrated. For the formulation of tablets numerous additives are required such as diluents, Adsorbents, Binders (granulating agents), Disintegrating agents, Organoleptic additives, Glidants, anti-adhesives, lubricants. There are various analytical parameters to check the authenticity of Tablet such as disinte-gration time, hardness, dissolution time, uniformity of weight etc.