NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Study for the NAPLEX exam with a comprehensive quiz featuring multiple-choice questions and in-depth explanations. Build your pharmacological knowledge and increase your chances of passing the pharmacist licensure examination!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is a serious warning associated with Niacin?

Constipation
Rhabdomyolysis
Increased LDL up to 44%
Decreased absorption of vitamin K

The correct answer is: Rhabdomyolysis

One of the serious warnings associated with Niacin is the risk of developing rhabdomyolysis, a serious condition where damaged muscle fibers release toxic substances into the bloodstream. This can lead to kidney failure and other serious complications. Options A, C, and D are not serious warnings associated with Niacin. Constipation is a common side effect that can be managed with proper hydration and dietary changes. Increased LDL levels may occur, but this can be managed by adjusting the dosage of Niacin. Decreased absorption of vitamin K usually does not cause any significant issues and can be addressed by increasing intake of vitamin K-rich foods or taking a supplement. Overall, it is important to closely monitor for symptoms of rhabdomyolysis when taking Niacin and to seek medical attention if any occur.