A 57-year-old man with congestive heart failure and hypertension presents to his primary care physician for follow-up. His current medications include digoxin and a calcium channel blocker. Serum electrolytes and a complete blood count are drawn. Which of the following blood indicators is most important to follow in this patient?

A 57-year-old man with congestive heart failure and hypertension presents to his primary care physician for follow-up. His current medications include digoxin and a calcium channel blocker. Serum electrolytes and a complete blood count are drawn. Which of the following blood indicators is most important to follow in this patient?

Bezafibrate:

Digoxin:

We have a patient who is diagnosed with variant (vasospastic) angina. Which of the following drugs would be most appropriate, and generally regarded as most effective, for long-term therapy aimed at reducing the incidence or severity of the coronary vasospasm?