A nurse is reviewing the medication record of a client who has hypertension. Which of the following medications should the nurse administer to lower the client's blood pressure?

The correct answer is B: Amlodipine. Amlodipine is a calcium channel blocker commonly used to treat hypertension by relaxing blood vessels, reducing blood pressure. It is a first-line medication for hypertension management. Promethazine (A) is an antihistamine, Fluconazole (C) is an antifungal, and Phenazopyridine (D) is a urinary analgesic, none of which are indicated for hypertension. Selecting Amlodipine aligns with evidence-based practice guidelines for hypertension management.