|Trade names||Tenoretic, Tenoret, others|
|Defined daily dose||not established|
|AHFS/Drugs.com||FDA Professional Drug Information|
Atenolol/chlorthalidone, also known as co-tenidone, is a combination medication used to treat high blood pressure. It is made up of atenolol, a beta-blocker and chlortalidone, a diuretic. It is not recommended as an initial treatment but may be used in those who are taking atenolol and chlortalidone individually. It is taken by mouth.
Common side effects include gastrointestinal upset and gout. Serious side effects may include liver problems, pancreatitis, and psychosis. Use is not recommended during pregnancy. Use during breastfeeding may harm the baby. Atenolol works by blocking β1-adrenergic receptors in the heart, thus decreasing the heart rate and workload. Chlorthalidone works by increasing the amount of sodium lost by the kidneys.
Society and culture
A month supply in the United Kingdom costs the NHS less than 2 £ as of 2019. In the United States the wholesale cost of this amount is about US$12.30. In 2017, it was the 295th most commonly prescribed medication in the United States, with more than one million prescriptions.
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