Approximately what range of drug dosages can be provided with each firing of a metered dose inhaler?
a. 5 to 50 mg
b. 50 to 100 mg
c. 5 to 50 mcg
d. 50 mcg to 5 mg
ANS: D
Approximately 60% to 80% by weight of this spray consists of the propellant, with only ap-proximately 1% being active drug (50 mcg to 5 mg, depending on the drug formulation).
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