Why is this drug prescribed?
Cozaar is used in the treatment of high blood pressure. It is effective when used alone or with other high blood pressure medications, such as diuretics that help the body get rid of water.
Cozaar is the first of a new class of blood pressure medications called angiotensin II receptor antagonists. Cozaar works, in part, by preventing the hormone angiotensin II from constricting the blood vessels, which tends to raise blood pressure.
Most important fact about this drug
You must take Cozaar regularly for it to be effective. Since blood pressure declines gradually, it may be several weeks before you get the full benefit of Cozaar, and you must continue taking it even if you are feeling well. Cozaar does not cure high blood pressure, it merely keeps it under control.
How should you take this medication?
Cozaar can be taken with or without food.
Take it at the same time each day. For example, if you take the medication every morning before or after breakfast, you will establish a regular routine and be less likely to forget your dose.
If you Miss a Dose
Take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular schedule.
Storage Instructions
Store at room temperature. Keep in a tightly closed container, away from light.
What side effects may occur?
Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Cozaar.
More common side effects may include:
- cough
- dizziness
- upper respiratory infection
Less common and rare side effects may include:
- allergic reactions
- back and leg pain
- diarrhea
- indigestion
- insomnia
- muscle cramps or pain
- nasal congestion
- sinus problems
- swelling of face, lips, throat, and tongue
Why should this drug not be prescribed?
Do not take Cozaar when you are pregnant. Avoid it if you have ever had an allergic reaction to it.
Special warnings about this medication
Cozaar can cause low blood pressure, especially if you are also taking a diuretic. You may feel light-headed or faint, especially during the first few days of therapy. If these symptoms occur, contact your doctor. Your dosage may need to be adjusted or discontinued. Be sure you know how you react to Cozaar before you drive or operate machinery.
Excessive sweating, dehydration, severe diarrhea, or vomiting could make you lose too much water, causing a severe drop in blood pressure. Call your doctor if you experience any of these symptoms. Be sure to tell your doctor about any medical conditions you have, especially liver or kidney disease.
Cozaar tends to increase the level of potassium in the blood. Check with your doctor before taking potassium supplements or using a salt substitute.
Possible food and drug interactions when taking this medication
If Cozaar is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before taking Cozaar with either Ketoconazole (Nizoral) or Troleandomycin (Tao)
Special information if you are pregnant or breastfeeding
Drugs such as Cozaar can cause injury or even death to the unborn child when used in the second or third trimester of pregnancy. Stop taking Cozaar as soon as you know you are pregnant. If you are pregnant or plan to become pregnant, tell your doctor before taking Cozaar. Cozaar may appear in breast milk and could affect the nursing infant. If this medication is essential to your health, your doctor may advise you to stop breastfeeding while you are taking Cozaar.
Recommended dosage
ADULTS
The usual starting dose is 50 milligrams once daily. However, Cozaar can also be taken twice daily, with total daily doses ranging from 25 milligrams to 100 milligrams. If your blood pressure does not respond, your doctor may increase your dose or add a low-dose diuretic to your regimen.
People taking diuretics and people with liver problems
The usual starting dose is 25 milligrams daily. Your doctor may adjust your dosage according to your response.
CHILDREN
The safety and effectiveness of Cozaar in children have not been studied.
Overdosage
Any medication taken in excess can have serious consequences. If you suspect an overdose, seek medical attention immediately. Information concerning Cozaar overdosage is limited. However, hypotension (low blood pressure) and abnormally rapid or slow heartbeat may be signs of an overdose.
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