Installment Available Zestril 20mg Tablet
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Prescription Required
Overview
Zestril 20mg Tablet contains Lisinopril 20mg and is available as a tablet. It is classified as a prescription medicine and may only be obtained with a valid prescription from a registered medical practitioner.
Only product, safety and handling information is published here. Anything beyond that is explained to you directly by your doctor or pharmacist as part of your consultation.
DoctorOnCall is a licensed online pharmacy. Orders for Zestril 20mg Tablet are processed only after a doctor has assessed your suitability and issued a prescription, and every order is checked by a registered pharmacist before it is sent out.
Directions for Use
Take Zestril 20mg Tablet at about the same time every day, with or without food. Swallow the tablet whole with a glass of water. Avoid taking it at bedtime unless advised, and rise slowly after the first dose, as some people experience a noticeable drop in blood pressure early in treatment.
Dosage
The usual starting dose of Zestril 20mg Tablet for hypertension is 10mg once daily, which your doctor may adjust up to 20-40mg daily depending on your blood pressure response; heart failure and post-heart-attack dosing typically starts lower and is titrated gradually. Always take this medicine exactly as prescribed by your doctor.
Shelf Life
Use this product before the expiry date stated on the packaging. Do not use the medicine if the expiry date has passed.
Storage Instructions
Store below 30°C in a dry place, away from direct sunlight and out of reach of children.
Side Effects
- Dizziness or lightheadedness
- Dry cough
- Headache
- Fatigue
- Nausea
- Low blood pressure
- Elevated blood potassium levels (hyperkalemia)
- Rash
Contraindications
- Known hypersensitivity to lisinopril or any other ACE inhibitor
- History of angioedema related to previous ACE inhibitor use
- Pregnancy (can cause harm to the developing baby, especially in the second and third trimester)
- Concomitant use with aliskiren in patients with diabetes or kidney impairment
- Bilateral renal artery stenosis
Drug / Food Interactions
- Potassium supplements or potassium-sparing diuretics may increase the risk of high blood potassium
- NSAIDs (e.g. ibuprofen) may reduce the blood-pressure-lowering effect and affect kidney function
- Lithium levels may increase when combined with lisinopril
- Salt substitutes containing potassium chloride should be used with caution
Quick Tips
- Take at the same time each day to build a consistent routine
- Report a persistent dry cough to your doctor – it is a known but usually harmless side effect
- Monitor your blood pressure regularly as advised by your doctor
- Rise slowly from sitting or lying down, especially after the first few doses
- Inform your doctor before starting any new supplement, especially potassium
Frequently Asked Questions
Is Zestril 20mg Tablet a prescription medicine?
Yes. Zestril 20mg Tablet is a prescription-only medicine (POM). It can only be supplied against a valid prescription written by a registered doctor, and it should be used only by the person named on the prescription label.
What does Zestril 20mg Tablet contain?
Zestril 20mg Tablet is supplied as a tablet and contains Lisinopril 20mg. The full composition is listed in the Composition section on this page and on the product packaging.
Why is there no information here about what Zestril 20mg Tablet is for?
Malaysian rules for prescription medicines limit public product pages to product, safety and handling information. Your doctor decides whether this medicine is appropriate for you and will explain it during your consultation, and your pharmacist can answer further questions when the medicine is dispensed.
How should I take Zestril 20mg Tablet?
Follow your doctor’s instructions and the directions on the dispensing label without changing them. If anything on the label is unclear, check with your pharmacist before taking the first dose, and read the Directions for Use section on this page.
What should I do if I miss a dose?
Take it as soon as you remember, unless your next dose is nearly due. In that case skip the missed dose and carry on with your usual schedule. Never take two doses together to make up for a missed one. If you miss doses often, tell your doctor or pharmacist.
How should I store Zestril 20mg Tablet?
Store below 30°C in a dry place, away from direct sunlight and out of reach of children. Keep it in the original pack until use, and do not use it after the expiry date printed on the packaging.
What should I do if I notice side effects?
Tell your doctor or pharmacist about any reaction that concerns you, and seek medical care immediately for signs of a severe reaction such as difficulty breathing, swelling of the face, lips or throat, or a widespread rash. Reported reactions are listed in the Side Effects section on this page.
Can I stop taking Zestril 20mg Tablet on my own?
No. Speak to your doctor before stopping, pausing or changing the dose, even if you feel well or think you no longer need the medicine.
How do I get a prescription for Zestril 20mg Tablet?
Customers in Malaysia can complete an online consultation with a DoctorOnCall doctor, who decides whether a prescription is appropriate, or upload a valid prescription already issued by their own doctor.
Orders going to Singapore are dispatched from Malaysia as an international delivery, so you need to hold a valid prescription or doctor’s letter for the medicine. Check the consultation and prescription upload options shown at checkout for your delivery address before placing the order.
How long will delivery take?
Within Malaysia, standard delivery takes 3 to 5 working days. Same-day delivery is available in the Klang Valley for orders placed before 12pm; orders placed after 12pm arrive by the end of the next day.
Orders to Singapore are sent as international deliveries and take 5 to 9 working days. A lump-sum shipping and handling fee applies to every overseas delivery and is shown at checkout.
What payment methods can I use?
Customers in Malaysia can pay by FPX online banking, credit or debit card (Visa and Mastercard), and supported e-wallets including Touch ‘n Go eWallet, GrabPay and ShopeePay.
FPX and local e-wallets are tied to Malaysian bank and wallet accounts, so if your delivery address is in Singapore, use the payment options displayed at checkout for that address rather than assuming the same list applies.
Can Zestril 20mg Tablet be delivered to Singapore?
Yes. DoctorOnCall ships to Singapore as an international order dispatched from Malaysia, arriving in 5 to 9 working days with a lump-sum shipping and handling fee.
Singapore’s Health Sciences Authority (HSA) allows personal imports of up to three months’ supply of a medicine for your own use or an immediate family member’s, as long as it contains no controlled drugs, psychotropic substances or prohibited items. Keep the product in its original labelled packaging and keep a copy of your prescription or doctor’s letter with it. Quantities above three months’ supply, and medicines containing controlled substances, require prior HSA approval.
Is Zestril 20mg Tablet registered with the authorities?
Products listed on DoctorOnCall are registered with Malaysia’s Ministry of Health for supply in Malaysia, and each pack carries its MAL registration number.
An order delivered to Singapore arrives as a personal import of a Malaysia-registered product; HSA product registration is not required for personal-use quantities, but it is also not the same as a product registered for sale in Singapore. If you need a locally registered Singapore product, buy it from a pharmacy in Singapore.
Who do I contact if there is a problem with my order?
DoctorOnCall’s customer care team handles order, delivery and product queries through the contact channels on the site, including WhatsApp and the online help centre.
For deliveries to Singapore, allow more time before chasing an order than you would for a local Malaysian delivery, as the parcel passes through customs clearance and tracking updates can appear later in the journey.
Ingredients / Active Ingredients
- Lisinopril 20mg
Safety Advice
Pregnancy
This medicine is not considered safe during pregnancy and should be avoided.
Breastfeeding
Limited data on excretion in breast milk. Consult a doctor before use.
Kidney
Use cautiously. Dose adjustment or monitoring may be required.
Liver
Use cautiously. Liver function monitoring may be required.
Alcohol
It is not advisable to consume alcohol while taking this medicine.
Driving
Use caution while driving until you know how this medicine affects you.
