Tenoretic 100

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

You should not use atenolol and chlorthalidone 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.

It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects .

Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away .

This medicine may cause heart failure in some patients. Check with your doctor right away if you are having chest pain or discomfort; dilated neck veins; extreme fatigue; irregular breathing; an irregular heartbeat; shortness of breath; swelling of the face, fingers, feet, or lower legs; weight gain; or wheezing .

This medicine may cause changes in your blood sugar levels. Also, this medicine may cover up signs of low blood sugar, such as a rapid pulse rate. Check with your doctor if you have these problems or if you notice a change in the results of your blood or urine sugar tests .

Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using this medicine several days before having surgery or medical tests .

Applies to atenolol / chlorthalidone: oral tablet

Along with its needed effects, atenolol / chlorthalidone may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking atenolol / chlorthalidone:

• Cold arms or legs
• difficult or labored breathing
• shortness of breath
• tightness in chest
• wheezing

• Chest pain or discomfort
• chills
• cold sweats
• confusion
• dizziness, faintness, or lightheadedness when getting up from lying or sitting position
• leg pain
• lightheadedness, dizziness, or fainting
• slow or irregular heartbeat
• unusual tiredness or weakness

• Black, tarry stools
• bleeding gums
• blood in urine or stools
• feeling that others are watching you or controlling your behavior
• feeling that others can hear your thoughts
• fever
• general feeling of discomfort, illness, or weakness
• paleness or cold feeling in fingertips and toes
• pinpoint red spots on skin
• seeing, hearing, or feeling things that are not there
• severe mood or mental changes
• skin irritation or rash, including rash that looks like psoriasis
• tingling or pain in fingers or toes when exposed to cold
• unusual behavior
• unusual bleeding or bruising

Get emergency help immediately if any of the following symptoms of overdose occur while taking atenolol / chlorthalidone:

• Blurred vision
• decreased urination
• dry mouth
• increase in heart rate
• muscle cramps or pain
• numbness, tingling, pain, or weakness in hands or feet
• rapid breathing
• seizures
• sunken eyes
• sweating
• thirst
• trembling
• weakness and heaviness of legs
• wrinkled skin

Some side effects of atenolol / chlorthalidone may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

• Discouragement
• feeling sad or empty
• irritability
• lack of appetite
• loss of interest or pleasure
• tiredness
• trouble concentrating
• trouble sleeping

• Diarrhea
• feeling of constant movement of self or surroundings
• nausea
• sensation of spinning
• unusual drowsiness, dullness, or feeling of sluggishness

• Decreased interest in sexual intercourse
• disturbed color perception
• double vision
• hair loss, thinning of hair
• halos around lights
• headache
• inability to have or keep an erection
• loss in sexual ability, desire, drive, or performance
• loss of vision
• night blindness
• overbright appearance of lights
• pain of penis on erection
• tunnel vision