Intril SR 1.5mg Tablet
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Overview
Intril SR 1.5mg Tablet contains indapamide 1.5mg in a sustained-release (SR) formulation, a thiazide-like diuretic used to treat high blood pressure (hypertension). Unlike a calcium channel blocker or an ACE inhibitor, indapamide lowers blood pressure mainly through its effect on the kidneys and blood vessels.
Indapamide works by reducing the reabsorption of sodium in the kidneys, which increases the excretion of sodium and water in urine and lowers circulating fluid volume. It also has a mild direct relaxing effect on blood vessel walls, both of which contribute to lowering blood pressure.
How it Works
Indapamide inhibits sodium reabsorption at the distal convoluted tubule of the kidney, promoting natriuresis (sodium loss in urine) and a reduction in blood volume. It also has a direct vasodilating effect on arterial smooth muscle. Together, these actions reduce peripheral vascular resistance and lower blood pressure.
Directions for Use
Take Intril SR 1.5mg Tablet once daily in the morning, with or without food. Swallow the tablet whole with a glass of water – do not crush or chew it, as this may affect the sustained-release action. Do not stop taking this medicine suddenly without consulting your doctor, even if you feel well.
Dosage
The usual dose of Intril SR 1.5mg Tablet is one tablet once daily, taken in the morning. Your doctor will determine whether this dose is suitable for you and may combine it with other blood pressure medicines if needed, along with periodic blood tests to monitor your electrolyte levels.
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, especially when standing up quickly
- Headache
- Muscle cramps or weakness
- Increased urination
- Nausea or upset stomach
- Fatigue or tiredness
- Low potassium levels (may require monitoring)
Contraindications
- Known hypersensitivity to indapamide, other sulfonamide-derived medicines, or any ingredient in this product
- Severe kidney impairment
- Severe liver impairment or hepatic encephalopathy
- Uncorrected low blood potassium (hypokalaemia)
- Breastfeeding
Drug / Food Interactions
- Lithium levels may increase when combined with indapamide, raising the risk of lithium toxicity
- NSAIDs (e.g. ibuprofen) may reduce the blood-pressure-lowering effect and affect kidney function
- Other medicines that can lower blood potassium (e.g. certain laxatives, corticosteroids) may increase the risk of hypokalaemia when combined
- Medicines that prolong the heart’s QT interval carry an increased risk of heart rhythm problems if blood potassium becomes low
Quick Tips
- Take in the morning to avoid needing to urinate frequently overnight
- Do not crush or chew the tablet, as this is a sustained-release formulation
- Attend scheduled blood tests to monitor your sodium and potassium levels
- Rise slowly from sitting or lying down to reduce dizziness
- Do not stop this medicine abruptly without medical advice
- Stay adequately hydrated, but do not change your fluid or salt intake drastically without discussing it with your doctor
Frequently Asked Questions
What is Intril SR 1.5mg Tablet used for?
Intril SR 1.5mg Tablet is used to treat high blood pressure (hypertension), either alone or together with other blood pressure medicines.
Is this the same medicine as Natrilix SR?
Yes, this product contains the same active ingredient, indapamide, in the same sustained-release formulation – only the brand name differs.
Can I stop taking this medicine if my blood pressure normalises?
No, do not stop without consulting your doctor. High blood pressure often has no symptoms, and stopping suddenly can cause your blood pressure to rise again.
Why do I need blood tests while taking this medicine?
Indapamide can affect your blood sodium and potassium levels, so periodic blood tests help your doctor make sure these stay within a safe range.
What should I do if I miss a dose of Intril SR 1.5mg Tablet?
Take the missed dose as soon as you remember, unless it is almost time for your next dose – in that case, skip the missed dose and continue your regular schedule. Do not double the dose.
Can I buy Intril SR 1.5mg Tablet from DoctorOnCall?
Yes, Intril SR 1.5mg Tablet is available through DoctorOnCall, a licensed online pharmacy serving our Malaysian and Singaporean customers. As this is a prescription medicine, you will need to complete an online consultation so a doctor can assess your suitability and issue a valid prescription before the order is processed. This ensures the medicine is appropriate for your condition and used under proper medical supervision, whether you are ordering from Malaysia or Singapore.
Is the medication provided by DoctorOnCall genuine and safe to use?
DoctorOnCall sources its medicines through appropriate licensed pharmacy supply channels for our Malaysian and Singaporean customers. All orders are dispensed and checked by a registered pharmacist before delivery. Always use Intril SR 1.5mg Tablet according to your doctor’s instructions and the information provided with the product.
What payment methods does DoctorOnCall accept?
We accept payment via Online Banking, Credit Card, and e-Wallets (Boost, GrabPay) for our Malaysian and Singaporean customers, so you can choose whichever method is most convenient for you at checkout.
Does DoctorOnCall provide an installment payment plan for Intril SR 1.5mg Tablet?
DoctorOnCall provides an installment payment plan for eligible Malaysian and Singaporean customers, where applicable. Available plans, eligibility, and terms can vary by market, so please contact DoctorOnCall Customer Service for the latest information on installment options for your order.
Is delivery free, and how much does shipping for Intril SR 1.5mg Tablet cost?
Delivery charges may vary for our Malaysian and Singaporean customers depending on your delivery location and the applicable order terms at the time of purchase. For the most accurate and up-to-date delivery fee information, please contact DoctorOnCall Customer Service before placing your order.
How long does delivery take for Intril SR 1.5mg Tablet?
Our Malaysian customers can generally expect delivery within 3-5 working days, while our Singaporean customers generally receive their orders within 5-7 working days. These are expected timeframes rather than guarantees, and actual delivery time may vary depending on your delivery location, order processing time, courier operations, and whether the order falls on a weekend or public holiday.
What is DoctorOnCall’s shipping, return, or cancellation policy for Intril SR 1.5mg Tablet?
Shipping, return, and cancellation terms may vary for our Malaysian and Singaporean customers depending on the product and your order details. Please refer to DoctorOnCall’s Shipping & Delivery Policy and Return, Refund & Exchange Policy, or contact Customer Service, for the specific terms that apply to your order.
Ingredients / Active Ingredients
- Indapamide 1.5mg (sustained-release)
Safety Advice
Pregnancy
This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.
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.
Medical Review
