A patient who has been taking verapamil (Calan) for hypertension complains of constipation. The ...

A patient who has been taking verapamil (Calan) for hypertension complains of constipation. The patient will begin taking amlodipine (Norvasc) to prevent this side effect.
 
  The nurse provides teaching about the difference between the two drugs. Which statement by the patient indicates that further teaching is needed?
  a. I can expect dizziness and facial flushing with nifedipine.
  b. I should notify the provider if I have swelling of my hands and feet.
  c. I will need to take a beta blocker to prevent reflex tachycardia.
  d. I will need to take this drug once a day.