Zestril is a brand name for lisinopril, a medication that treats high blood pressure.
How It Works
Zestril belongs to a class of drugs known as angiotensin converting enzyme inhibitors (or ACE inhibitors). Angiotensin is a biological agent produced by the body that makes blood vessels narrow, building up the blood pressure inside. Zestril can block the production of these chemicals, so blood vessels do not narrow. This results in lower blood pressure causing blood to flow more smoothly without excessive strain on the heart.
Zestril is used to treat high blood pressure in adults and children who are 6 years or older. High blood pressure, or hypertension, can increase the risk for heart attack, heart failure, kidney failure and stroke. Taking Zestril significantly reduces a patient’s risk for these possibly fatal conditions. Zestril is sometimes prescribed to treat patients with congestive heart failure.
Your doctor will determine the dosage of Zestril most appropriate for your condition and medical history.
Take this medication exactly as your doctor tells you to take it, and for the duration of the period the doctor recommends.
Take Zestril pills at the same time each day with or without meals. Swallow the pills whole with plenty of water each time.
Do not take higher or lower doses of Zestril than prescribed. High doses of this medication can lead to a serious overdose or severe side effects.
Do not miss doses of Zestril. If you miss a dose, avoid taking a double dose. Take missed doses only if the next dose is not due soon.
Zestril may cause following side effects:
Side effects other than the ones listed above may occur.
Side effects should disappear after a while. Tell your doctor if side effects become severe or do not go away after a while.
Immediately contact your doctor if you experience unstoppable vomiting, diarrhea, or unusual sweating when you are taking Zestril. This could indicate a serious side effect.
Do not take Zestril if you are allergic to any of the ingredients listed in the packaging.
It’s not recommended to take Zestril if you have a history of liver disease, kidney disease, hereditary angioedema, diabetes, or elevated levels of potassium in the blood.
Zestril can lead to dangerously low blood pressure (hypotension), kidney failure or electrolyte disorders in some cases. You will have to ask your doctor how you can take Zestril safely without putting yourself at risk for these problems.
Zestril can cause the potassium levels in your blood to elevate abnormally. It’s advised to be on the lookout for signs of high potassium when taking this medication. Symptoms of high potassium levels include nausea and weakness.
Zestril may cause kidney problems (marked by painful or difficult urination, swelling in lower legs, etc) and/ or liver problems (marked by lack of appetite, jaundice, dark urine, etc).
Your blood pressure will need to be checked frequently when taking Zestril. Learn how to do this properly.
Zestril can cause dehydration. Therefore, consume plenty of liquids to stay well hydrated when you are taking this medication.