Tenormin is a brand name for the drug Atenolol, which is used to treat high blood pressure and prevent certain types of heart attacks. Other synonyms for this medication include Atecard, Corotenol, Betacard, Jenatenol, and Selobloc. These medications work by reducing the workload on the heart and lowering blood pressure, which can help prevent heart attacks, strokes, and other complications related to high blood pressure. It is important to consult a healthcare professional before taking any medication, including Tenormin and its synonyms, as certain medical conditions and other medications may interact negatively with this medication.