Which of the following calcium channel blockers needs to be protected from light?
A. verapamil
B. nifedipine
C. nicardipin
D. diltiazem
Answer: B. nifedipine
Rationale: Nifedipine (Procardia XL®) is a calcium channel blocker that must be protected from light. The other answer choices do not.
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The most important antigens that need to be matched for a successful outcome in stem cell transplants are:
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Which phase describes the mechanism of drug action by which a drug causes its effects within the body through drug-receptor interactions?
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