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Imperial and Metric system for weight and measurements

Weight and Measures: ·          Mainly two system available o    Metric System (Decimal system) o    Imperial System (English system) §   Avoirdupois system §   Apothecaries system Metric System: ·          Modern and most scientific ·          Based on decimal point, (0) ·          Mass (Weigth): kg, gm, mg, mcg, Nanogram etc. ·          Liquid measurement: L, dl, cl, ml, mcl etc Imperial System: Avoirdupois: ·          Widely adopted in UK ·          Official in BP ·          Used for buy wholesale drug Apothecaries: ·          Generally used by physician and dis...

General Excipients used in Monophasic liquid preparation

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Excipients used in Monophasic Pharmaceutical liquid preparation as below 1.       Vehicle: ·          Purified water ·          Aromatic water: chloroform, peppermint, cinnamon, dill water ·          Syrups ·          Glycerin (glycerites) ·          Elixirs (hydro alcoholic) 2.       Solvents used in internal solution: Solvent Properties Remarks/Use Aqueous liquids Water Cheap, Good solvent action, High dielectric constant, Miscible, Non-Inflammable, Inert Sugar, gum, organic acid, tannins, glycosides, alkaloid salt are soluble easily, Cellulose, starch resin, fixed oil, volatile oils are insoluble Purified water (Di...

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