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Cardura XL 4mg Tablet 100s - DoctorOnCall Online Pharmacy

Cardura XL 4mg Tablet 100s

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Prescription Required
This medication requires a valid prescription from a doctor.
Don’t Have A Prescription? Get A Consult With Our Doctor Today.
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Checkout & review your order.
STEP 2
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STEP 3
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100% Authentic
We ensure that all our pharmaceutical products including health supplements and traditional preparations are registered with the National Pharmaceutical Regulatory Authority (NPRA) Malaysia
Free Delivery on orders above RM120
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CLOSE
Prescription Required
This medication requires a valid prescription from a doctor.
Don’t Have A Prescription? Get A Consult With Our Doctor Today.
STEP 1
Checkout & review your order.
STEP 2
Make payment.
STEP 3
Our doctor will contact you within 1-hour of your purchase.
Term & Condition
100% Authentic
We ensure that all our pharmaceutical products including health supplements and traditional preparations are registered with the National Pharmaceutical Regulatory Authority (NPRA) Malaysia
Free Delivery on orders above RM120
Enjoy free delivery with a minimum spend of RM120 on our platform.

Product Overview

Introduction of Cardura XL 4mg Tablet 100s

Cardura XL 4mg Tablet is a prescription medication belonging to the alpha-1 blocker drug class, with doxazosin as its active ingredient, formulated as an extended-release tablet designed to deliver consistent therapeutic levels throughout the day. If you are considering this medication, it is completely natural to want to know what to expect — and we want you to feel informed and confident. Like most medicines, Cardura XL 4mg can cause some side effects in certain individuals, with the most commonly reported ones including dizziness, headache, fatigue, and low blood pressure (hypotension), particularly when standing up quickly. The extended-release formulation is specifically designed to help minimise sudden fluctuations, making it generally well-tolerated when taken as directed by your doctor. Always speak with your healthcare provider before starting, adjusting, or stopping this medication, as personalised medical guidance is key to using it safely and effectively.

How to Take Cardura XL 4mg Tablet

Cardura XL 4mg Tablet should be taken orally, once daily, preferably with breakfast or the first meal of the day to support consistent absorption. The tablet must be swallowed whole — do not crush, chew, or break it, as this can interfere with the extended-release mechanism and affect how the medication works in your body. Always follow your doctor's or pharmacist's specific instructions regarding timing and administration, as individual guidance may vary based on your health condition and other medications you may be taking.

Dosage of Cardura XL 4mg Tablet

The typical starting dose of Cardura XL is 4mg once daily, which your doctor may gradually increase to a maximum of 8mg once daily depending on your individual response and tolerability. Dosage adjustments should only be made under the supervision of a qualified healthcare professional — never self-adjust your dose without medical advice.

Shelf Life of Cardura XL 4mg Tablet

Cardura XL 4mg Tablet generally has a shelf life of 2 to 3 years from the date of manufacture, as indicated on the original packaging. Always check the expiry date printed on the blister pack or carton before use, and do not consume the tablet if it has passed its expiry date, even if it appears visually unchanged. Expired medication should be disposed of safely and responsibly — consult your pharmacist for proper disposal guidance.

How to Store Cardura XL 4mg Tablet

  • Store Cardura XL 4mg Tablet at room temperature, below 30°C
  • Keep the tablets in a dry place, away from direct sunlight, heat, and moisture
  • Do not store in the bathroom or near the kitchen sink where humidity levels are high
  • Keep the medication in its original packaging until ready for use
  • Store out of reach of children and pets at all times
  • Do not use the tablet if the packaging appears damaged, tampered with, or compromised in any way

Active Ingredient of Cardura XL 4mg Tablet

The active ingredient in Cardura XL 4mg Tablet is:

  • Doxazosin Mesilate — equivalent to Doxazosin 4mg

Doxazosin is a selective alpha-1 adrenoceptor antagonist. The "XL" (extended-release) formulation uses a GITS (Gastrointestinal Therapeutic System) delivery technology, which allows the active ingredient to be released gradually and steadily over a 24-hour period, supporting once-daily dosing and a more stable pharmacological profile.

Side Effects of Cardura XL 4mg Tablet

As with all medications, Cardura XL 4mg Tablet may cause side effects in some individuals. Not everyone will experience these, and many side effects are mild and temporary. However, it is important to be aware of them:

Common Side Effects:

  • Dizziness or light-headedness, especially when standing up (orthostatic hypotension)
  • Headache
  • Fatigue or tiredness
  • Oedema (swelling), particularly in the lower limbs
  • Somnolence (drowsiness)
  • Nausea
  • Abdominal discomfort

Less Common Side Effects:

  • Palpitations or rapid heartbeat (tachycardia)
  • Hypotension (low blood pressure)
  • Blurred vision
  • Dry mouth
  • Rhinitis (runny or blocked nose)
  • Back pain
  • Urinary incontinence

Rare but Serious Side Effects (seek immediate medical attention):

  • Severe allergic reactions (rash, swelling of face/lips/throat, difficulty breathing)
  • Syncope (fainting)
  • Priapism (prolonged, painful erection — a medical emergency)
  • Intraoperative Floppy Iris Syndrome (IFIS) — particularly relevant if you are scheduled for cataract surgery
  • Severe hypotension with loss of consciousness

⚠️ If you experience any severe or persistent side effects, stop taking the medication and consult your doctor or seek emergency medical care immediately.

Contraindications of Cardura XL 4mg Tablet

  • Hypersensitivity to doxazosin, other quinazolines, or any excipient in the formulation
  • History of orthostatic hypotension (a significant drop in blood pressure upon standing)
  • Patients with benign prostatic hyperplasia (BPH) who also have a history of gastrointestinal obstruction, including oesophageal obstruction or any degree of decreased lumen diameter of the gastrointestinal tract (due to the GITS tablet design)
  • Breastfeeding mothers (doxazosin is excreted in breast milk)
  • Patients with hepatic impairment (liver disease) — use with caution or avoid, as doxazosin is extensively metabolised by the liver
  • Monotherapy in patients with overflow bladder or anuria
  • Concomitant use with PDE-5 inhibitors (e.g., sildenafil, tadalafil) without medical supervision due to significant risk of severe hypotension

Always inform your doctor of your complete medical history, current medications, and any known allergies before starting Cardura XL 4mg Tablet.

Drug & Food Interactions of Cardura XL 4mg Tablet

Being aware of potential interactions helps you use Cardura XL 4mg Tablet safely. Always inform your doctor and pharmacist about all medications, supplements, and herbal products you are currently taking.

Drug Interactions:

  • Antihypertensive agents and diuretics — concurrent use may enhance the blood pressure-lowering effect, increasing the risk of hypotension
  • PDE-5 inhibitors (sildenafil/Viagra, tadalafil/Cialis, vardenafil) — may cause a significant and potentially dangerous drop in blood pressure; use only under strict medical supervision
  • NSAIDs (e.g., ibuprofen, naproxen) — may reduce the antihypertensive effect of doxazosin
  • Alpha-blockers — combining with other alpha-blockers may increase the risk of hypotension
  • CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin, ritonavir) — may increase plasma levels of doxazosin, potentially intensifying side effects
  • Sympathomimetic agents — may reduce the effectiveness of doxazosin

Food Interactions:

  • Grapefruit and grapefruit juice — may interfere with the metabolism of doxazosin; best avoided during treatment
  • Alcohol — can enhance the blood pressure-lowering and sedative effects of doxazosin, increasing the risk of dizziness and fainting; avoid or minimise alcohol consumption
  • Taking Cardura XL with a high-fat meal may slightly alter absorption — consistent administration with a light meal (breakfast) is generally recommended

Quick Tips for Cardura XL 4mg Tablet

  • Always take Cardura XL at the same time each day — consistency helps maintain stable medication levels in your body
  • Take it with your breakfast for best results and to minimise stomach discomfort
  • Never crush, split, or chew the tablet — the extended-release mechanism must remain intact to work properly
  • Rise slowly from sitting or lying positions to reduce the risk of dizziness or fainting, especially in the first few days of treatment
  • Avoid driving or operating heavy machinery until you know how this medication affects you, as dizziness and drowsiness are possible
  • Do not skip doses — if you miss a dose, take it as soon as you remember, unless it is almost time for your next dose; never double up
  • Inform your surgeon or ophthalmologist that you are taking doxazosin before any planned surgery, especially eye (cataract) surgery, due to the risk of IFIS
  • Keep all follow-up appointments with your doctor to monitor your response to treatment and blood pressure levels
  • Store your medication safely — away from heat, moisture, and out of reach of children
  • Do not share your medication with others, even if they appear to have similar symptoms — this is a prescription medicine for a reason
  • Check the expiry date on the packaging before every use
  • Purchase only from licensed and verified pharmacies — in Malaysia, ensure the pharmacy is registered with the Ministry of Health (MOH) for your safety

Frequently Asked Questions (FAQs) — Cardura XL 4mg Tablet

Purchasing & Availability

Q1: Can I buy Cardura XL 4mg Tablet online in Malaysia?
 Yes, you can purchase Cardura XL 4mg Tablet through our licensed online pharmacy in Malaysia. We are registered and compliant with Malaysian pharmaceutical regulations, ensuring that every product sold is authentic and properly sourced. Simply add the product to your cart and follow the checkout process — it's straightforward and secure.

Q2: Is Cardura XL 4mg Tablet available without a prescription in Malaysia? 
No. Cardura XL 4mg Tablet is a prescription-only medication (POM) in Malaysia. When ordering online, you will be required to upload a valid prescription issued by a registered medical practitioner. This is a regulatory requirement to protect your health and safety, and we take this responsibility seriously.

Q3: How do I submit my prescription when ordering online? 
During the checkout process on our website, you will find an option to upload a photo or scanned copy of your prescription. Our in-house pharmacist will review and verify it before your order is processed and dispatched. If you have any questions about this process, our customer support team is happy to assist you.

Q4: What if I don't have a current prescription? Can I still order? 
For your safety, we are unable to dispense prescription medications without a valid prescription. We recommend consulting your doctor or visiting a registered clinic in Malaysia to obtain a valid prescription before placing your order. Some of our partner teleconsultation services may also be able to assist you — feel free to reach out to us for guidance.

Authenticity & Product Quality

Q5: How do I know the Cardura XL 4mg Tablet I purchase from you is genuine? 
We source all our pharmaceutical products exclusively from authorised distributors and licensed suppliers in Malaysia. Cardura XL 4mg Tablet sold through our platform is the original, registered product — not a counterfeit or parallel import. You can also verify product registration through the National Pharmaceutical Regulatory Agency (NPRA) Malaysia database for added peace of mind.

Q6: Is the Cardura XL 4mg Tablet sold on your website registered with the Malaysian Ministry of Health (MOH)?
 Yes. The Cardura XL 4mg Tablet available on our platform is a MOH-registered pharmaceutical product in Malaysia. We only stock and sell medications that meet the regulatory standards set by the NPRA and the Ministry of Health Malaysia.

Delivery & Ordering

Q7: Do you deliver Cardura XL 4mg Tablet across Malaysia?
 Yes! We offer nationwide delivery across Peninsular Malaysia, Sabah, and Sarawak. Delivery timelines may vary depending on your location, but we strive to ensure your medication reaches you promptly and in perfect condition. Estimated delivery times will be displayed at checkout.

Q8: How is the medication packaged for delivery to ensure it is not damaged?
 We take great care in packaging all medications for safe transit. Cardura XL 4mg Tablet is packed in discreet, protective packaging that shields it from heat, moisture, and physical damage during delivery. Your privacy is also respected — all parcels are delivered in plain, unmarked packaging.

Q9: Can I track my order after it has been dispatched?

 Absolutely! Once your order has been dispatched, you will receive a tracking number via email or SMS so you can monitor your delivery in real time. If you experience any issues with your delivery, our customer service team is ready to help.

Safety & Storage

Q10: Is it safe to order Cardura XL 4mg Tablet online from your pharmacy?
 Yes, ordering from our licensed online pharmacy is safe and reliable. We operate in full compliance with Malaysian pharmacy regulations, and all orders are reviewed by a qualified pharmacist before dispensing. Your health and safety are our top priority at every step of the process.

Q11: Will the Cardura XL 4mg Tablet I receive have sufficient shelf life remaining? 
We always ensure that medications dispatched to customers have a minimum of 6 months of shelf life remaining at the time of delivery. If for any reason your product does not meet this standard, please contact us immediately and we will resolve it promptly.

Q12: What should I do if my delivered Cardura XL 4mg Tablet appears damaged or tampered with?
 Please do not consume any medication that appears damaged, tampered with, or has compromised packaging. Contact our customer support team immediately with photos of the product, and we will arrange a replacement or refund in accordance with our returns policy. Your safety always comes first.

Q13: Can I return Cardura XL 4mg Tablet if I change my mind after purchasing?
 Due to the nature of pharmaceutical products and strict hygiene and safety regulations, opened or dispensed medications generally cannot be returned. However, if there is a genuine issue with the product — such as damage, incorrect item, or a quality concern — please reach out to us and we will do our best to assist you in accordance with Malaysian pharmacy regulations.

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Frequently Bought Together

Brands

Viatris

Active Ingredient

doxazosin 

Manufactured by

Pfizer Pharmaceuticals

Side Effects

As with all medications, you may experience some side effects. Not everyone experiences it. This is not a cause for concern. However, it is so that you are aware of it.

Drowsiness, Dizziness, Headache, Syncope, Palpitation, Chest pain, Lethargy, Nausea, Abdominal pain, Diarrhea, Dry mouth, Orthostatic hypotension

Warning Precautions

Precautionary Steps of Cardura XL 4mg Tablet 100s

Please consult a doctor especially before taking Cardura XL. If you have any of the following conditions & contraindications:-

  • Allergy to Cardura XL or any of its components
  • Hypersensitivity
  • Breastfeeding
  • Pregnancy
  • Obstruction of digestive tract
  • Benign prostatic hyperplasia AND low blood pressure
  • Orthostatic hypotension
  • Anuria
  • Liver Disease
  • Heart disease
  • Undergoing cataract surgery
  • It is not recommended for patients below 16 years old.

Cardura XL Drug Interactions

Drug to drug interaction reaction of Cardura XL varies from a person to another person. It is advisable to check with your doctor about all the possible drug interactions before starting the medication.
  • Drugs for erectile dysfunction
  • Other antihypertensives

This is an incomprehensive list of drug-to-drug interactions and conditions that might interfere with Cardura XL function. Do inform your doctor about all your current medications prior to consuming this drug. 

Keep the following precautions in mind as well:-
  • Tell your doctor if you have any other diseases or if you are taking any other medication

Alcohol Warning (Not Advisable)

It is not advisable to consume alcohol with Cardura XL 4mg Tablet 100s. Taking Cardura XL 4mg Tablet 100s with alcohol may have additive effects in lowering blood pressure. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate.

Pregnancy Warning (Not Safe)

Cardura XL 4mg Tablet 100s may be unsafe to use during pregnancy. Animal studies have shown reducing fetal survival, however, there are limited human studies to prove the safety of Cardura XL 4mg Tablet 100s. The benefits from use in pregnant women may be acceptable despite the risk which must need the opinion of the physician. Please consult your doctor.

Breastfeeding Warning (Limited Data)

Cardura XL 4mg Tablet 100s may be unsafe to use during lactation. Approximately 20 times greater than the maternal plasma concentration of Cardura XL 4mg Tablet 100s will excrete in rat milk in an animal study. However, limited human data suggests that Cardura XL 4mg Tablet 100s does not represent a significant risk to the baby. Please consult your doctor.

Driving Warning (Not Advisable)

Do not drive while taking this medication unless you are feeling well. Cardura XL 4mg Tablet 100s may cause side effects such as dizziness, headaches, nausea or tiredness, all of which could affect your ability to concentrate and drive.

Kidney Warning (Use With Care)

Cardura XL 4mg Tablet 100s should be used with caution in patients with kidney disease. Although renal impairment will not affect the pharmacokinetics of this drug, renal function need to be monitored to prevent an unwanted effects since Cardura XL 4mg Tablet 100s is not dialyzed. Please consult your doctor before using it.

Liver Warning (Limited Data)

Use of Cardura XL 4mg Tablet 100s is not recommended in patients with liver disease. In a clinical study among people with liver impairment, Cardura XL 4mg Tablet 100s will increase 43% of drug concentration in the blood plasma. This may lead to unwanted toxicity. Dose adjustment of Cardura XL 4mg Tablet 100s may be needed. Please consult your doctor.

FAQ

Disclaimer

Information last updated on: Mon Apr 06 2026 03:06:37 GMT+0000 (Coordinated Universal Time) The product images shown are for illustration purposes only and may not be an exact representation of the product.

The content provided on this webpage is to provide information only, to be fully-interpreted by a medical professional, and not intended as a guide to make purchase decisions, or a substitute to advice of a medical professional. Effectiveness and side effects of medication may differ from individual to individual. We do not encourage any customer to self-diagnose and/or self-medicate. Patients should always consult a medical professional before taking or using any medication. The content provided here is non-exhaustive and may not cover all aspects of the medication. Our service should only be used to support the doctor-patient dynamic, not replace it.

The fulfilment of prescription medication is subject to our review of a prescription issued by a Malaysian Medical Council (MMC) registered doctor. If required, we will provide a tele-consult service with one of our registered panel doctors. This is not an advertisement of a medicine as such an advertisement would require prior approval from the Medicines Advertisement Board of Malaysia. Cardura XL 4mg Tablet 100s is available in many areas in Malaysia. Kuala Lumpur, Bukit Bintang, Titiwangsa, Setiawangsa, Wangsa Maju, Kepong, Segambut, Bandar Tun Razak, Cheras, Subang Jaya, Petaling Jaya, Mont Kiara, Puchong, Bandar Sunway, TTDI, Seri Kembangan, Klang, Bukit Tinggi, Damansara, Sentul, Penang, George Town, Jelutong, Gelugor, Bayan Baru, Bandar Baru Air Itam, Sungai Ara, Bukit Mertajam, Butterworth, Perai, Johor Bahru, Skudai, Bukit Indah, Gelang Patah, Senai, Pasir Gudang, Taman Daya, Taman Molek, Taman Perling, Tebrau, Danga Bay, Larkin, Nusajaya, Pontian, Masai, Setia Tropika, Desaru, Tampoi.


Cardura XL 4mg Tablet 100s is available at many places in Singapore. Ang Mo Kio, Alexandra, Admiralty, Bedok, Bishan, Bukit Batok, Bukit Merah, Bukit Panjang, Bukit Timah, Boat Quay, Buona Vista, Beach Road, Bugis, Balestier, Boon Lay, Central Area, Choa Chu Kang, Clementi, Chinatown, Commonwealt, City Hall, Clarke Quay, Changi Airport, Changi Village, Clementi Park, Dairy Farm, Eunos, East Coast, Farrer Park, Geylang, Hougang, Harbourfront, Holland, Jurong, Jurong East, Jurong West, Kallang/ Whampoa, Lim Chu Kang, Marine Parade, Marina, Macpherson, Mandai, Newton, Novena, Orchard, Pasir Ris, Punggol, Potong Pasir, Paya Lebar, Queenstown, Raffles Place, Rochor, River Valley, Sembawang, Sengkang, Serangoon, Serangoon Rd, Seletar, Tampines, Toa Payoh, Tanjong Pagar, Telok Blangah, Tanglin, Thomson, Tuas, Tengah, Upper East Coast, Upper Bukit Timah, Upper Thomson, Woodlands, West Coast, Yishun, Yio Chu Kang.
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