Apo-Allopurinol 100mg Tablet
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Overview
Apo-Allopurinol 100mg Tablet contains allopurinol 100mg, a xanthine oxidase inhibitor used to lower high uric acid levels in the blood and to prevent recurrent gout attacks and the formation of kidney stones caused by excess uric acid.
Allopurinol works by blocking the enzyme xanthine oxidase, which is responsible for producing uric acid in the body. By reducing uric acid production, it lowers blood uric acid levels over time, preventing the crystal deposits that cause gout attacks.
How it Works
Allopurinol and its active metabolite oxypurinol inhibit xanthine oxidase, the enzyme that converts hypoxanthine and xanthine into uric acid. This lowers the overall production of uric acid, gradually reducing blood uric acid levels and preventing new urate crystal deposits in joints and kidneys.
Directions for Use
Take Apo-Allopurinol 100mg Tablet after food to reduce stomach upset, with a full glass of water. Drink plenty of fluids throughout the day, especially when starting treatment, to help prevent kidney stones. Continue taking this medicine regularly even during a gout attack, unless your doctor advises otherwise.
Dosage
The usual starting dose of Apo-Allopurinol 100mg Tablet is typically 100mg daily, increased gradually by your doctor based on your blood uric acid levels, up to a maintenance dose that may range from 100mg to 300mg or more daily. Your doctor will determine the right dose for you based on regular blood tests.
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
- Skin rash or itching
- Nausea or vomiting
- Diarrhoea
- Drowsiness or dizziness
- Headache
- Mild joint pain
- Change in taste
Contraindications
- Known hypersensitivity to allopurinol or any ingredient in this product
- Starting this medicine during an acute gout attack (may worsen or prolong the attack if started without cover)
- Severe kidney impairment without dose adjustment
Drug / Food Interactions
- Azathioprine and 6-mercaptopurine levels can rise dangerously high when combined with allopurinol, requiring dose reduction
- ACE inhibitors and thiazide diuretics may increase the risk of allergic skin reactions when combined
- Warfarin’s blood-thinning effect may be enhanced, requiring closer INR monitoring
- Alcohol may increase uric acid levels and reduce the effectiveness of treatment
Quick Tips
- Take after meals to reduce stomach upset
- Drink plenty of water each day to help prevent kidney stones
- Do not stop this medicine during a gout attack unless your doctor advises otherwise – it is a long-term preventive treatment, not a painkiller
- Report any new skin rash to your doctor promptly, as this can occasionally be serious
Frequently Asked Questions
What is Apo-Allopurinol 100mg Tablet used for?
Apo-Allopurinol 100mg Tablet is used to lower high uric acid levels and prevent recurrent gout attacks and uric-acid-related kidney stones. It is a long-term preventive treatment rather than a painkiller for acute gout.
Why did my gout attack get worse after starting this medicine?
Starting allopurinol can occasionally trigger or worsen a gout attack in the first few weeks as uric acid crystals mobilise. Your doctor may prescribe a short course of anti-inflammatory medicine to cover this period – do not stop allopurinol without asking your doctor first.
How long do I need to take this medicine?
Allopurinol is usually a long-term, often lifelong, treatment for gout prevention, since uric acid levels rise again if it is stopped. Your doctor will review your need for ongoing treatment periodically.
Can I take this medicine with azathioprine?
Combining allopurinol with azathioprine or 6-mercaptopurine can cause dangerously high levels of those medicines. If you are taking either of these, tell your doctor, as the dose may need to be significantly reduced or the combination avoided.
What should I do if I miss a dose of Apo-Allopurinol 100mg 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 Apo-Allopurinol 100mg Tablet from DoctorOnCall?
Yes, Apo-Allopurinol 100mg 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 Apo-Allopurinol 100mg 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 Apo-Allopurinol 100mg 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 Apo-Allopurinol 100mg 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 Apo-Allopurinol 100mg 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 Apo-Allopurinol 100mg 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
- Allopurinol 100mg
Safety Advice
Pregnancy
This medicine should be used cautiously during pregnancy. Monitoring may be required.
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
