Which of the following medications is used to manage hypertension?

Norvasc, also known by its generic name Amlodipine, is a medication specifically used to manage hypertension, or high blood pressure. It belongs to a class of medications called calcium channel blockers, which work by relaxing the blood vessels, making it easier for the heart to pump blood and thus lowering blood pressure. This mechanism is essential in treating hypertension, as elevated blood pressure can lead to serious health issues like heart disease and stroke.

Other medications listed do not have a primary indication for managing hypertension. For instance, Prozac is an antidepressant used primarily to treat depression and anxiety disorders, Premarin is a hormone replacement therapy used in treating menopausal symptoms, and Plavix is an antiplatelet medication used to prevent blood clots in certain cardiovascular conditions.