Compounding of pharmaceutical liquid preparations UE Past Papers Questions.

How do you get factor when enlarging and reducing of official formula.

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UNSOLVED

From the following formula, calculate the quantities required to make 180 mL of Benzyl benzoate lotion.
Benzyl Benzoate …………………………………………… 250 mL
Triethanolamine ……………………………………………. 5 mL
Oleic Acid ………………………………………………….. 20 mL
Purified Water, to make ………………………………….. 1000 mL

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From the following formula, calculate the quantities required to make 5 gallons of a phenobarbital elixir.
Phenobarbital ……………………………………………….. 4 g
Orange Oil …………………………………………….... 0.25 mL
Certified Red color …………………………………….......... q.s
Alcohol ………………………………………………….. 200 mL
Propylene Glycol ………………………………………... 100 mL
Sorbitol Solution ………………………………………… 600 mL
Water, to make …………………………………………. 1000 mL

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From the following formula, calculate the quantities required to make 5 lb of hydrophilic ointment.
Methylparaben …………………………………………….. 0.25 g
Propylparaben ……………………………………………... 0.15 g
Sodium Lauryl Sulfate ………………………………………. 10 g
Propylene Glycol …………………………………………... 120 g
Stearyl Alcohol …………………………………………….. 250 g
White Petrolatum …………………………………………... 250 g

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From the following formula, calculate the quantity of each ingredient required to make 1500 g of the powder.
Calcium Carbonate ………………………………………… 5 parts
Magnesium Oxide …………………………………………. 1 part
Sodium Bicarbonate ……………………………………….. 4 parts
Bismuth Subcarbonate ……………………………………... 3 parts

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