Tenoretic 50

Generic name:atenolol and chlorthalidone [ a-TEN-oh-lole-and-klor-THAL-i-done ]
Brand names: Tenoretic 100, Tenoretic 50
Drug class:Beta blockers with thiazides

Medically reviewed by Drugs.com on Oct 5, 2020. Written by Cerner Multum.

What is Tenoretic 50?

Atenolol is a beta-blocker. Chlorthalidone is a thiazide diuretic (water pill).

Tenoretic 50 is a combination medicine used to treat hypertension (high blood pressure). Lowering blood pressure may lower your risk of a stroke or heart attack.

Tenoretic 50 may also be used for purposes not listed in this medication guide.

Warnings

You should not use Tenoretic 50 if you have a serious heart problem such as heart block or slow heart rate, if you are unable to urinate, or if you are allergic to sulfa drugs.

Do not use Tenoretic 50 if you are pregnant. It could harm the unborn baby.

Before taking this medicine

You should not use this medicine if you are allergic to atenolol or chlorthalidone, or if you have:

• a serious heart condition such as "AV block" (second or third degree);

• very slow heartbeats;

• heart failure;

• if you are unable to urinate; or

• if you are allergic to sulfa drugs.

Tell your doctor if you have ever had:

• congestive heart failure;

• coronary artery disease (hardened arteries);

• angina (chest pain);

• asthma, bronchitis, or other lung disorder;

• diabetes;

• a thyroid or parathyroid disorder;

• liver or kidney disease;

• pheochromocytoma (tumor of the adrenal gland);

• gout;

• lupus;

• peripheral vascular disease such as Raynaud's syndrome;

• psoriasis;

• an electrolyte imbalance (such as low levels of potassium in your blood); or

• allergies (or if you are undergoing allergy treatments or skin-testing).

Tell your doctor if you are pregnant or you become pregnant. Taking Te...