Tenoretic is a medication that is commonly used to treat high blood pressure. This medication contains two active ingredients: atenolol and chlorthalidone. There are various synonyms for Tenoretic, which include atenolol-chlorthalidone, Tenoret, atenolol and chlorthalidone, Lopressor HCT, and Zebeta. These medications are all used to treat high blood pressure, and they work by decreasing the workload on the heart and relaxing the blood vessels. While these synonyms may have different brand names, they contain similar active ingredients and are all effective treatments for high blood pressure. It is important to consult with a medical professional before taking any medication to ensure that it is safe and effective for your individual needs.