Pharmaceutics-2

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Medicated Effervescent granules.

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Prescription (2).

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Prepare 20 g of effervescent sodium citrotartarate granules, containing 15% sibutramine :.

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Calculations:. 1- Total wt. = 510 + 180 + 270 + 150 = 1110 g ≈ 1000 g. 2- 25% excess 25/100 * 20 g = 5g excess 25 g medicated granules should be prepared 3- Amount of drug = 15/100 *25 g = 3.75 g drug 4- Amount of plain powders = Total weight – Amount of drug = 25 g - 3.75 g = 21.25 g 5- F = D/G = 21.25 / 1000 =0.02125.

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Prepare 20 g of effervescent sodium citrotartarate granules, containing 15% sibutramine :.

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Method of preparation (wet granulation method):. 1- In a mortar, grind each powder seperately ..

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6- Pass the mass through the sieve → Rod shaped granules.

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Quality Control tests. Effervescence test:. On 15 ml water in a measuring cylinder, add 2.5 g of the prepared granules.

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Effervescence test Lag time Time of effervescence Volume of froth Clarity of the solution Flowability test Angle of repose Compressibility test porosity Bulk density Carr’s index (% compressibility).

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Sig. I tbs in fl ℥ water t.i.d . a.c .. The Label.

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Prescription (3).

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Rx/ Sodium bicarbonate 510 g Citric acid 180 g Tartaric acid 270 g Sucrose 150 g Send 20 g of effervescent granules containing 5 % liquid extract of belladonna..

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Calculations:. 1- Total wt. = 510 + 180 + 270 + 150 = 1110 g ≈ 1000 g. 2- 25% excess 25/100 * 20 g = 5g excess 25 g medicated granules should be prepared 3- Amount of drug = 5/100 *25 g = 1.25 g drug / 1 = 1.25 ml 4- Amount of plain powders = Total weight – Amount of drug = 25 g - 1.25g = 23.75 g 5- F = D/G = 23.75 / 1000 = 0.02375.

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Prepare 20 g of effervescent sodium citrotartarate granules, containing 5 % liquid extract of belladonna:.

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Method of preparation (wet granulation method):. 1- In a mortar, grind each powder seperately ..

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6- Pass the mass through the sieve → Rod shaped granules.

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Quality Control tests. Effervescence test:. On 15 ml water in a measuring cylinder, add 2.5 g of the prepared granules.

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Effervescence test Lag time Time of effervescence Volume of froth Clarity of the solution Flowability test Angle of repose Compressibility test porosity Bulk density Carr’s index (% compressibility).