What are some of the brand names under which Diltiazem Hydrochloride is available?

The answer is correct because Diltiazem Hydrochloride is indeed marketed under several brand names, with Cardizem and Tiazac being well-known formulations. Cardizem is one of the most recognized brand names for Diltiazem, commonly used for conditions such as hypertension and angina. Tiazac is an extended-release formulation that allows for once-daily dosing, which is particularly beneficial for patient compliance. Additionally, Dilt-XR is another formulation featuring extended-release properties, providing a sustained therapeutic effect throughout the day.

The other options include brand names or terms not associated with Diltiazem Hydrochloride. For instance, Plavix is an antiplatelet medication used primarily to prevent blood clots, while Edema refers to a medical condition, and does not relate directly to any formulation of Diltiazem. Cardiazem is a misspelling; the correct formulation is Cardizem. Therefore, the answer accurately lists the recognized brand names for Diltiazem Hydrochloride.