This medicine may interact with the following medications:

-certain medicines for blood pressure, heart disease, irregular heart beat
-clonidine
-diuretics
-lithium
-NSAIDs, medicines for pain or inflammation, like ibuprofen or naproxen

They need to know if you have any of these conditions:

-chest pain or angina
-decreased urine
-diabetes
-gout
-heart or vessel disease like slow heart rate, worsening heart failure, heart block, sick sinus syndrome or Raynaud''s disease
-kidney or liver disease
-lung or breathing disease
-pheochromocytoma
-thyroid disease
-an unusual or allergic reaction to chlorthalidone, atenolol, other beta-blockers, sulfa drugs, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Visit your doctor or health care professional for regular check ups. Check your heart rate and blood pressure regularly. Ask your doctor or health care professional what your blood pressure should be and when you should contact him or her.
Check with your doctor or health care professional if you get an attack of severe diarrhea, nausea and vomiting, or if you sweat a lot. The loss of too much body fluid can make it dangerous for you to take this medicine.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.
This medicine may increase blood sugar. Ask your healthcare provider if changes in diet or medicines are needed if you have diabetes.
This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.
Do not treat yourself for coughs, colds, or pain while you are taking this medicine without asking your doctor or health care professional for advice. Some ingredients may increase your blood pressure.

Keep out of the reach of children and pets.
Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Protect from light and moisture. Keep the container tightly closed. Avoid exposure to extreme heat. Throw away any unused drug after the expiration date.