Zestril is a tablet for high blood pressure. It contains an ingredient called lisinopril, which is an ACE inhibitor.
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Blood pressure is the term used to describe the strength with which blood is pumped around your body. When a blood pressure reading is taken there are two numbers involved. The first number (the systolic pressure) shows the force with which your heart is pumping blood around your body. The second number (the diastolic pressure) shows the resistance in your blood vessels as the blood flows into them.
If your heart is pumping blood into narrow blood vessels, there will be more pressure in the vessels than if they were wide and the blood could move easily through them. This is known as high blood pressure, meaning that the blood faces a high level of pressure (or resistance) as it tries to move around the body.
If high blood pressure is left untreated it can lead to an increased risk of heart disease, stroke and heart attack.
High blood pressure is linked to lifestyle choices like smoking, drinking alcohol and being inactive. There are also some medical causes such as lupus, underactive thyroid and diabetes.
Zestril is a tablet that is taken once a day. It can help to lower blood pressure and reduce the risk of associated complications.
How does Zestril work?
Zestril contains an active ingredient called lisinopril,which belongs to a group of medicines called angiotensin-converting enzyme (ACE) inhibitors.
Angiotensins can cause blood vessels to become narrow and restricted, and this makes it difficult for blood to flow through them freely.
Lisinopril relaxes and widens blood vessels so that it’s easier for blood to be pumped into them. This widening decreases blood pressure and makes your heart’s job easier.
What doses of Zestril are there?
Zestril is available in three dosage sizes: 5mg, 10mg and 20mg. Your clinician will decide which dose is best for you. Most people start on a lower dose which is increased until the right dose is found.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
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How to take Zestril
Always take your medication exactly as prescribed by your clinician.
You will usually be told to:
swallow the tablet whole with a drink of water.
take the tablets at the same time each day.
When taking your first dose, you will usually be told to:
take special care and lie down if you start to feel dizzy or light-headed.
contact our clinician if you are concerned after taking Zestril for the first time.
Common dosages:
For high blood pressure
Starting dose of 10mg once a day.
Long term dose of 20mg once a day.
For heart failure
Starting dose of 2.5mg once a day.
Long term dose of 5mg - 35mg once a day.
After a heart attack
Starting dose of 5mg within 24 hours of heart attack and 5mg one day later
Long term dose of 10mg once a day.
For kidney problems caused by diabetes
The recommended dose is either 10mg or 20mg once a day.
How long does it take Zestril to work?
The active ingredient in Zestril can start to reduce high blood pressure within a few hours, but the full effects of the medication can take a few weeks to become apparent.
If you’re taking Zestril for heart failure it can take from a few weeks to a few months for you to start feeling better.
After a heart attack, you may not feel that the tablets are making any difference because you’re not experiencing symptoms. Even if you feel no different when you start taking Zestril, it’s important to keep taking them after a heart attack because it’s likely that they are working as your clinician wants them to.
What should I do if I make a mistake when taking Zestril?
If you forget to take a dose of Zestril, take it as soon as you remember. If it’s almost time for you to take the next dose, skip the missed dose and carry on as normal.
Never take a double dose of Zestril.
If you take too much Zestril, seek medical attention immediately.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
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FAQ: Zestril
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
How is Zestril different to other treatments for high blood pressure?
Answer:
Zestril is an ACE inhibitor. The active ingredient in Zestril helps to widen the blood vessels to allow blood from the heart to flow more freely around the body.
There are other types of treatment available for high blood pressure and the type of treatment you’re prescribed depends on your symptoms and circumstances.
Other treatments include beta blockers, which reduce the heart’s workload, and calcium channel blockers (CCBs) that prevent calcium from entering the heart and arteries.
Is Zestril similar to any other treatments?
Answer:
Zestril is a branded version of the generic drug lisinopril. This means that both treatments will work in the same way because they contain the same active ingredient.
They may look different because they’re produced by different companies in different factories, but they both work in the same way.
Branded treatments are often more expensive than their generic versions, but some people prefer a branded medication and so don’t mind paying a little extra for it.
Which dose of Zestril should I use?
Answer:
Normally you’ll start by taking a low dose of Zestril and then increase the dose until the right one is found.
Our clinician will talk to you about your treatment plan and can discuss adjusting your dose with you where required.
Do I need a prescription for Zestril?
Answer:
Yes. Zestril is only available on prescription because its use needs to be monitored and altered as it’s used. Our clinician will need to make sure that it’s safe and suitable for you to use, based on your health background.
Why should I buy Zestril online with Treated?
Answer:
Keeping your blood pressure under control can be tricky, but medication together with lifestyle changes make it possible to reduce blood pressure and improve your health.
Talk to us about your health, and we’ll advise you on the right treatments just for you. You can choose your medication from there, and we’ll deliver it to your door.
We’ll get in touch with you to see how you’re finding your treatment, and if you’ve got any questions about it, we’re here. You just need to sign in to your account and send our clinician a message.
Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.
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