Kamiren XL 4mg Tablet
Rx- FDA Approved
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Prescription Required
Overview
Kamiren XL 4mg Tablet contains doxazosin 4mg in an extended-release (prolonged-release) formulation, an alpha-1 adrenergic blocker used to treat high blood pressure (hypertension) and to relieve urinary symptoms caused by benign prostatic hyperplasia (BPH, a non-cancerous enlargement of the prostate) in men.
Doxazosin works by blocking alpha-1 receptors found in the walls of blood vessels and in the smooth muscle of the prostate and bladder neck. This relaxes and widens blood vessels to lower blood pressure, and relaxes the muscle around the bladder outlet to ease urine flow.
How it Works
By selectively blocking alpha-1 adrenergic receptors, doxazosin prevents noradrenaline from causing smooth muscle to contract. In blood vessels this produces vasodilation and lowers peripheral resistance and blood pressure; in the prostate and bladder neck it reduces muscle tone, easing the obstruction to urine flow associated with an enlarged prostate.
Directions for Use
Take Kamiren XL 4mg Tablet once daily, at about the same time each day, with or without food. Swallow the extended-release tablet whole with a glass of water; do not crush, chew, or split it, as this can release the full dose at once. It is normal to occasionally notice a soft tablet shell residue in the stool – this is simply the empty shell after the medicine has been released and is not a cause for concern.
Dosage
The usual dose of Kamiren XL 4mg Tablet is 4mg once daily, which your doctor may increase to 8mg once daily after a few weeks if needed, depending on your blood pressure or urinary symptom response. This is an individualised treatment, so always follow your doctor’s prescribed dose rather than adjusting it yourself.
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 light-headedness
- Headache
- Fatigue or tiredness
- Swelling in the legs or feet (edema)
- Runny or stuffy nose
- Low blood pressure, especially when standing up quickly
Contraindications
- Known hypersensitivity to doxazosin or other quinazoline-derived medicines
- History of postural (orthostatic) hypotension or fainting spells
- Severe liver impairment
- Men being treated for BPH who also have a history of low blood pressure on standing
Drug / Food Interactions
- Other blood pressure medicines or nitrates can increase the risk of a significant drop in blood pressure
- PDE5 inhibitors (e.g. sildenafil, tadalafil) taken close together with doxazosin can cause symptomatic low blood pressure
- Alcohol may worsen dizziness and light-headedness
- Other alpha-blockers should not be combined, as this increases the risk of hypotension
Quick Tips
- Take your first dose at bedtime, as dizziness is most likely after starting treatment
- Rise slowly from sitting or lying down, especially in the first few days
- Swallow the extended-release tablet whole – never crush, chew, or split it
- Tell your doctor before taking any medicine for erectile dysfunction while on this treatment
Frequently Asked Questions
What is Kamiren XL 4mg Tablet used for?
Kamiren XL 4mg Tablet is used to treat high blood pressure and to relieve urinary symptoms (such as difficulty starting to urinate or a weak stream) caused by an enlarged prostate.
Why do I need to take my first dose at bedtime?
Doxazosin can cause a marked drop in blood pressure and dizziness shortly after the first dose or a dose increase, so taking it at bedtime reduces the risk of falls.
Can I crush or split the tablet if I have trouble swallowing?
No, this extended-release tablet must be swallowed whole. Crushing, chewing, or splitting it can release the entire dose at once and increase the risk of side effects.
Will this medicine cure my enlarged prostate?
No, doxazosin relieves the urinary symptoms caused by an enlarged prostate but does not shrink the prostate itself. Your doctor will monitor your prostate condition separately.
What should I do if I miss a dose of Kamiren XL 4mg 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 Kamiren XL 4mg Tablet from DoctorOnCall?
Yes, Kamiren XL 4mg 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 Kamiren XL 4mg 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 Kamiren XL 4mg 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 Kamiren XL 4mg 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 Kamiren XL 4mg 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 Kamiren XL 4mg 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
- Doxazosin 4mg (extended-release, as doxazosin mesilate)
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
Generally safe, but caution may be required in some patients.
Liver
Use cautiously. Liver function monitoring may be required.
Alcohol
Caution is advised when consuming alcohol with this medicine.
Driving
Use caution while driving until you know how this medicine affects you.
Medical Review
