The Tenormin is the drug that presents the side effects of the other drugs by increasing the heart beat. This drug is having the brand name as Atenolol and having the other brand names as Hipres, and Tenolol. The drug is manufactured by ZYDUS CADILA, and Blue Cross. The drug is available in the form of tablets. The drugs are available in the various strengths like 25 mg, 50 mg, and 100 mg. These drugs are having the high dosages compare to any other drugs. The important action of this drug is it increases the heart beat to reduce the side effects caused by other drugs.