a. A controlled-release dosage form delivers the drug over a longer period of time than a sustained-release dosage form
b. A controlled-release dosage form delivers the drug at a constant rate, while a sustained-release dosage form delivers the drug at a variable rate
c. A controlled-release dosage form is used for acute conditions, while a sustained-release dosage form is used for chronic conditions
d. A controlled-release dosage form is a liquid dosage form, while a sustained-release dosage form is a solid dosage form
Answer: b. A controlled-release dosage form delivers the drug at a constant rate, while a sustained-release dosage form delivers the drug at a variable rate