NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Ace your North American Pharmacist Licensure Examination (NAPLEX) with our comprehensive practice test. Features include interactive flashcards, multiple-choice questions, with detailed hints and explanations. Fast-track your pharmacy career today!

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What is a feature of the Osmotic Release Oral System (OROS)?

Provides fast drug delivery only
Provide extended drug release only
Provide both fast drug delivery and extended release in one drug
None of the above

The correct answer is: Provide both fast drug delivery and extended release in one drug

The correct answer is C. The Osmotic Release Oral System (OROS) is designed to provide both fast drug delivery and extended release in one drug formulation. This system works by delivering an initial dose rapidly followed by a sustained release of the drug over an extended period of time. This feature helps maintain constant therapeutic drug levels in the body, resulting in improved efficacy and adherence to the prescribed treatment regimen. Option A is incorrect because OROS does not provide fast drug delivery only. Option B is incorrect because OROS does not provide extended drug release only. Option D is incorrect because the Osmotic Release Oral System does have specific features related to drug delivery.