Ayurvedic medicines are the combinations of selected herbal drugs and are manufactured under different pharmaceutical processes to result in various dosage forms such as churnas, bhasmas, liquid, lehas, pill, tablet etc. Churna is defined as a fine powder of drug or drugs in ayurvedic system of medicine. The churna is free flowing and retains its potency for one year, if preserved in airtight containers. Churna formulations are similar to powder formulations in allopathic system of medicine. In recent days churna is formulated into tablets in order to fix the dose easily. These forms of medicament are prescribed generally because of their particle size. Smaller the particle size greater is the absorption rate from g.i.t and hence the greater is bioavailability. Herbal medicine has been enjoying renaissance among the customers throughout the world. Ayurvedic principles show that everyone has a particular personality type as shown by the make up of their dos has, or inner life energies. Your prakriti is your make up when you were born, and vikruti is what they are now as a result of life's experiences and stresses and imbalances of other elemental influences. In order to correct these derangements, one can use churnas, or Ayurvedic spice powders that are made up of blends of spices. These churnas are made of fresh herbs that have medicinal properties, as well as the ability to neutralize the toxic effects caused by imbalances within the body. Ayurvedic churnas combine all six of the ayurvedic tastes: sweet, sour, salty, pungent, bitter, and astringent. They are created through the combination of a number of different fresh herbs, and can be added to almost any foodstuff. Not only do churnas improve the taste of the dish and add their own nutritional kick, they also bring out the medicinal qualities of the foods they are added to. Churna is an ayurvedic poly herbal formulation used for its anti-ulcer, anti-diabetic, wound-healing, antioxidant, immuno modulatory and rejuvenating purpose. In this review article It includes five herbal drugs, ie; dried whole plant part of [1] Mimosa pudica (Family: Leguminosae ), dried rind of Punica granatum ( Family: Lythraceae ) ,dried fruit of Emblica officinalis (familuy: Ephorbiaceae ), dried seeds of [2] Sesamum indicum ( family: Pedaliaceae ), dried seeds of Cuminum cyminum ( family: Apiaceae ) in powder form .The present review encompasses all the important aspects of polyherbal formulation-churna of above mentioned four plants.
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