Page 14 - Referance Guide For Pharmaceutical Calculations (Naplex, Fpgee and Ptce)

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169.(c) 65 mg/5cc 173.(c) The amount of Clindamycin required to
prepare 2% 60 gm topical gel:
The amount of Dicloxacillin:
= 60 x 2 = 1.2 gm
= 13 x 500 mg 100
= 6500 mg
We have 150 mg capsules of clindamycin:
These amounts are present in 500cc of Alamag
solution: = 1200 = 8 capsules.
150
= 6500 mg/500cc
= 13 mg/cc 174. (b) The amount of sodium hypochlorite
= 65 mg/5cc required to prepare 1000cc 0.25% solution;

170.(d) 0.8 mg/cc = 1000 x 0.25 = 2.5 gm
100
The amount of Povidone:
We have 5% Dakin (sodium hypochlorite) solution in
= 8 x 10 = 0.8 gm = 800 mg stock:
100
The solution is diluted up to 1000cc with water = 2.5 x 100 = 50cc, 5% sodium hypochlorite solution.
therefore: 5

= 800 mg/1000cc 175.(c) The amount of Trilafon present in 120cc (1
= 0.8 mg/cc mg/5cc),

171.(d) 3.33% w/w. = 120 x 1 = 24 mg
5
Amount of Chloramphenicol:
To get this 24 mg, we need 24cc of (1 mg/cc)
= 2 x 500 mg Trilafon solution.
= 1000 mg
= 1 gram 176.(c) 50 mg/cc.

% of Chloramphenicol: Vancomycin content:

= 100 x 1 = 3.33% w/w = 2 x 250
30 = 500 mg

172.(d) 20 mg/cc Concentration of Vancomycin:

The amount of Clindamycin: = 500 mg/10cc
= 50 mg/cc
= 8 x 150 = 1200 mg
177.(d) 105.68 gm
The concentration of drug in mg/ml:

= 1200 mg/60cc = 20mg/cc

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