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Question

Theophyllineis to be prepared from an elixir with a drug concentration of 5% and a cherry- flavoer syrup that is to be added to hide the tate of the drug. How much of each must be used to prepare 8- millieters of solution with a drug concentration of 4%

Answer 1

Theophyllineis to be prepared from an elixir with a drug concentration of 5% and a cherry- flavoer syrup that is to be added to hide the tate of the drug. How much of each must be used to prepare 8- millieters of solution with a drug concentration of 4%

(conc)(vol) = (conc)(vol)

(.05)(x) = (.04)(8)

x = 6.4 mL of the concentrated theophylline and 1.6 mL of the flavoring