This first section of our medication database entry focuses on basic drug characteristics, uses and benefits, while part two covers side effects, interactions and additional information.
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Tenoretic 100 Consumer Information
TENORETIC 100
Generic Name: atenolol and chlorthalidone (a TEN oh lole and klor THAL I done)
Brand Names: Tenoretic 100, Tenoretic 50
What is the most important information I should know about atenolol and chlorthalidone?
- To reduce nighttime urination, take atenolol and chlorthalidone before 6 p.m. and preferably in the morning.
- Do not stop taking this medication unless your doctor approves. If you stop taking your medication, your condition could become much worse.
What is atenolol and chlorthalidone?
- Atenolol is in a class of drugs called beta-blockers. Atenolol is used to lower blood pressure, lower heart rate, reduce angina (chest pain), and reduce the risk of a recurrent heart attack.
- Chlorthalidone is a thiazide diuretic (water pill). It helps to lower your blood pressure and decrease edema (swelling) by increasing the amount of salt and water you lose in your urine.
- Atenolol and chlorthalidone is used to treat high blood pressure (hypertension).
- Atenolol and chlorthalidone may also be used for purposes other than those listed in this medication guide.
Who should not take atenolol and chlorthalidone?
- Do not take atenolol and chlorthalidone if you have an allergy to sulfa-based drugs such as sulfa antibiotics. You may have an allergic reaction to chlorthalidone
- Before taking this medication, tell your doctor if you have
- asthma;
- a heart condition such as low blood pressure, heart block, a pacemaker, or heart failure, or any other heart problem;
- diabetes
- gout;
- a collagen vascular disease such as systemic lupus erythematosus;
- pancreatitis;
- kidney disease;
- liver disease;
- any type of circulatory disease; or
- thyroid disease.
- You may not be able to take atenolol and chlorthalidone, or you may require a lower dose or special monitoring during treatment if you have any of the conditions listed above.
- This drug is in the FDA pregnancy category D. This means that atenolol and chlorthalidone is known to harm an unborn baby. Do not take this medication if you are pregnant.
- Atenolol and chlorthalidone passes into breast milk and may harm a nursing infant. Do not take atenolol and chlorthalidone without first talking to your doctor if you are breast-feeding a baby.
How should I take atenolol and chlorthalidone?
- Take atenolol and chlorthalidone exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.
- Take each dose with a full glass of water.
- Atenolol and chlorthalidone is usually taken once a day. Follow your doctor's instructions.
- To reduce nighttime urination, take atenolol and chlorthalidone before 6 p.m. and preferably in the morning.
- Do not stop taking this medication unless your doctor approves. If you stop taking your medication, your condition could become much worse.
- Store atenolol and chlorthalidone at room temperature away from moisture and heat.
What happens if I miss a dose?
- Take the missed dose as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take only your next regularly scheduled dose. Do not take a double dose of this medication.
What happens if I overdose?
- Seek emergency medical attention.
- Symptoms of an atenolol and chlorthalidone overdose include an irregular heartbeat, seizures, confusion, fainting, coma, shortness of breath, and wheezing.
What should I avoid while taking atenolol and chlorthalidone?
- Avoid a diet high in salt. Too much salt will cause your body to retain water and will decrease the effects of chlorthalidone.
- Avoid prolonged exposure to sunlight. Atenolol and chlorthalidone may increase the sensitivity of your skin to sunlight. Use a sunscreen and wear protective clothing when exposure to the sun is unavoidable.
- Avoid becoming overheated in hot weather. It is easy to become dangerously dehydrated while taking chlorthalidone.
- Use caution when driving, operating machinery, performing other hazardous activities. Atenolol and chlorthalidone may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities. Also use caution when rising from a sitting or lying position.
- Use alcohol cautiously. Alcohol may further lower blood pressure and increase drowsiness and dizziness while you are taking atenolol and chlorthalidone.
- Before having surgery, tell your doctor and dentist that you are taking this medication.
Please see the end of this document for relevant limitations, full details of our medication information supplier, and revision date or version number.