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Solid Dosage, , Forms
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“ADVANTAGES, , * Foster dispersal of medicament compored to tablet, capsules, * Convenient for dispersing bulky drug,, , * Dry therefore stable,, , * Less incompatible ,, , * Rapid onset of action,, , * Convenient for children & elderly patients., , * Economical, , * Easy to cory thon liquid dosage form., , * Lorge quantity can be easily administered by patient orally,, , “DISADVANTAGES, , * Drugs having bitter, nauseous, unpleasant taste cannot be dispensed in, powder form,, , * Deliquescent & Hygroscopic drug cannot be given in powder form,, , * Drugs affected by atmospheric condition cannot be given in powder form,, * Dispensing is time consuming, , * Weighing dificulty ( qty, Less than 100mg.)
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METHOD OF PREPARATION OF POWDERS, , * During powdering, weighing and mixing there is loss of, powder which cannot be avoided. Therefore while, calculating the quantity of ingredients calculate for, one extra powder than required., , * The crystalline substances are powdered separately, and then weigh the required quantity of each, ingredient., , * Mix all the ingredients in ascending order of their, weights and mix thoroughly to form a homogeneous, , powder.