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.
Special precautions if you are pregnant or breastfeeding
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. Cozaar may appear in breast milk and could affect the nursing infant.
Special warnings about Cozaar
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. Be sure to tell your doctor about any medical conditions you have, especially liver or kidney disease and congestive heart failure. In very rare cases, Cozaar has triggered fatal kidney problems in people with heart failure.
Cozaar tends to increase the level of potassium in the blood. Check with your doctor before taking potassium supplements or using a salt substitute.