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Expected arrival dates based on your shipping choice:
- Standard Delivery: Arrives approx. 4 Oct 2026
Overview
Sunward Suntacid is an antacid tablet from the Malaysian pharmaceutical brand Sunward, supplied by DoctorOnCall as a strip of 10 tablets. Its active ingredients are aluminium hydroxide and magnesium hydroxide, a long-established combination of two alkaline antacid compounds. The tablet is designed to be chewed or sucked slowly and then swallowed with water, as described in the product information shown on DoctorOnCall.
Aluminium hydroxide and magnesium hydroxide are often combined because their effects on the bowel differ, with aluminium compounds tending to firm the stool and magnesium compounds tending to loosen it. The sources reviewed do not publish the milligram strength of each ingredient, or the full list of tablet excipients such as flavouring and binders, so please refer to the pack for the exact composition. Antacid tablets of this type are formulated to be chewed, so that the particles are broken down before the tablet is swallowed.
Sunward Suntacid is for oral use only, and it should be taken as directed on the pack rather than in larger amounts or for prolonged periods. It contains aluminium and magnesium, so people with kidney disease, and people taking other medicines that need to be absorbed carefully, should speak with a doctor or pharmacist before use. Our pharmacist team at DoctorOnCall can answer questions about ingredients, suitability and how to space this product from other medicines before you order.
Directions for Use
Chew or suck the tablet slowly and then swallow it with a glass of water, rather than swallowing it whole without chewing. Take it after meals and at bedtime, or as directed on the pack or by a healthcare professional. Wash and dry your hands before handling the tablet and keep the remaining tablets in their strip until needed.
To avoid interfering with other medicines, leave a gap of about 2 hours between this antacid and any other medicine you take, unless a pharmacist has told you otherwise. Do not use more tablets than the pack directs, and do not use the product continuously for long periods without medical advice.
- Drink a glass of water after chewing so the tablet is washed down fully.
- Do not crush the tablet into food or drinks unless the pack allows this.
- Avoid taking it at the same time as citrus juices or citrate-containing products, since these can increase aluminium absorption.
Dosage
Adults: 1 to 2 tablets, taken after meals and at bedtime, or as directed by a healthcare professional, as stated in the product information shown on DoctorOnCall. Do not exceed the dose on the pack, and note that the pack instructions take priority if they differ. Not to be used continuously for more than 2 weeks without medical advice.
Children: use only on the advice of a doctor or pharmacist. Missed dose: this product is taken after meals and at bedtime, so simply take the next dose when it is due and do not double up. If symptoms persist for more than a few days, recur frequently or worsen, stop taking the tablets and consult a doctor.
Shelf Life
Check the expiry date printed on the strip and carton. A fixed shelf life is not stated in the sources reviewed, so please use the tablets before the printed expiry date and discard any tablet that is discoloured, crumbling or damaged.
Storage Instructions
Store below 30°C in a dry place, away from direct sunlight, heat and moisture. Keep the tablets in their original strip and carton until you are ready to use them.
- Keep out of the sight and reach of children.
- Do not store in a humid bathroom or a hot car.
- Do not use after the expiry date on the pack.
Side Effects
- Common: Constipation, which is more often associated with the aluminium hydroxide component.
- Common: Diarrhoea or loose stools, which are more often associated with the magnesium hydroxide component.
- Common: Nausea, burping, bloating or a chalky taste in the mouth.
- Serious: Muscle weakness, unusual tiredness, a slow or irregular heartbeat or confusion, which can be signs of raised magnesium or aluminium levels, particularly in people with kidney problems, and need urgent medical care.
- Serious: Severe or persistent abdominal pain, black or bloody stools or vomiting blood, which need immediate medical assessment.
- Serious: Allergic reactions such as rash, swelling of the face, lips or throat, or difficulty breathing, which need emergency care.
Contraindications
- Known hypersensitivity to aluminium hydroxide, magnesium hydroxide or any other ingredient in the tablet.
- Severe kidney impairment, unless a doctor has specifically advised use, because aluminium and magnesium can build up in the body.
- Symptoms that suggest a serious condition, such as black stools, vomiting blood, difficulty swallowing or unexplained weight loss, which need medical assessment rather than self-medication.
- Use in people with low blood phosphate levels, or a history of bowel obstruction, unless advised by a doctor.
Drug / Food Interactions
- Antacids containing aluminium and magnesium can reduce the absorption of many medicines, including tetracycline and quinolone antibiotics, iron supplements, levothyroxine, digoxin, some antifungals and bisphosphonates, so take other medicines at least 2 hours before or after this product unless advised otherwise.
- Tell your doctor or pharmacist if you take medicines for kidney disease, blood pressure or heart rhythm, as the magnesium and aluminium in this product may add to their effects or accumulate.
- Do not use with other antacids or magnesium- or aluminium-containing products at the same time, since this increases the total amount of aluminium and magnesium taken.
- Citrus fruit juices and other citrate-containing products may increase aluminium absorption, so avoid taking the tablet at the same time as them.
- No other food interactions are known when the tablet is taken as directed.
Quick Tips
- Chew the tablet slowly and drink water afterwards.
- Space this antacid about 2 hours away from other medicines, including iron and antibiotics.
- Take it after meals and at bedtime as directed, rather than on an empty stomach.
- Note how often you need the tablets, because frequent use should be reviewed by a doctor.
- Store the strip in a dry place below 30°C and away from children.
- Do not use it continuously for more than 2 weeks without medical advice.
Frequently Asked Questions
What are the active ingredients in Sunward Suntacid?
The active ingredients are aluminium hydroxide and magnesium hydroxide, which are alkaline antacid compounds. The exact milligram strength of each ingredient is printed on the pack, and the inactive ingredients such as flavouring and binders are also listed there.
Who should avoid using Sunward Suntacid?
It should not be used by anyone who is allergic to aluminium hydroxide, magnesium hydroxide or any other ingredient. People with kidney disease should speak with a doctor first, and anyone with black stools, vomiting blood, difficulty swallowing or unexplained weight loss should be assessed by a doctor rather than self-medicating.
Can I take Sunward Suntacid together with my other medicines?
It is best to leave about 2 hours between this antacid and other medicines, because aluminium and magnesium can bind some medicines and reduce their absorption. This applies particularly to tetracycline and quinolone antibiotics, iron, levothyroxine, digoxin and some antifungals, so please tell our pharmacist team about all your medicines.
Is Sunward Suntacid safe during pregnancy or breastfeeding?
Antacids containing aluminium and magnesium are commonly taken during pregnancy and breastfeeding at the recommended dose for short periods, but regular or high-dose use should be discussed first. Please check with a doctor or our pharmacist team before use so that your individual circumstances, including any kidney or blood pressure conditions, are considered.
How should I chew and take Sunward Suntacid?
Chew or suck the tablet slowly, then swallow it with water. Take it after meals and at bedtime as directed on the pack, and do not exceed the recommended number of tablets or use it continuously for more than 2 weeks without medical advice.
How should I store Sunward Suntacid?
Store the strip below 30°C in a dry place, away from direct sunlight and moisture, and keep the tablets in their original packaging. Keep them out of the reach of children, and do not use them after the expiry date printed on the pack.
Can I purchase Sunward Suntacid online through DoctorOnCall in Malaysia or Singapore?
Yes, Sunward Suntacid is available for purchase through DoctorOnCall as an online pharmacy serving customers in Malaysia and Singapore. As with any health product, please read the product label and follow the recommended directions, and speak with our pharmacist team if you have any questions before ordering.
Is the medicine supplied by DoctorOnCall genuine and safe to use?
Products supplied through DoctorOnCall are sourced and handled through the appropriate pharmacy supply process. As with any medicine, please use Sunward Suntacid according to the product instructions and professional advice, and contact our pharmacist team if you have any concerns about your order.
What payment methods does DoctorOnCall accept?
We accept payment via Online Banking, Credit Card, and e-Wallets (Boost, GrabPay), so you can choose whichever method is most convenient for you at checkout.
Does DoctorOnCall provide an installment payment plan for Sunward Suntacid?
DoctorOnCall provides an installment payment plan for eligible purchases where applicable. Available plans, eligibility, and terms can vary, so please contact DoctorOnCall Customer Service for the latest information on installment options for your order.
Is delivery free, and how much does it cost?
Delivery charges may depend on your delivery location and the applicable order and delivery terms. For the latest delivery fee information for Malaysia or Singapore, please contact DoctorOnCall Customer Service.
How long will it take for my order to arrive?
Orders to Malaysia are generally delivered within 3-5 working days, and orders to Singapore are generally delivered within 5-9 working days, although actual delivery time may vary depending on the delivery location, order processing, courier operations, weekends, and public holidays.
What is DoctorOnCall’s shipping, return, or cancellation policy for Sunward Suntacid?
Shipping, return, and cancellation terms may vary depending on the product, your order details, and whether you are ordering from Malaysia or Singapore. 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
Related Health Conditions
Safety Advice
Pregnancy
This medicine is generally safe during pregnancy, though minor risks may exist in rare cases.
Breastfeeding
Use with caution. Monitor infant for potential adverse reactions.
Kidney
Use cautiously. Dose adjustment or monitoring may be required.
Liver
Limited data available in liver disease patients.
Alcohol
Caution is advised when consuming alcohol with this medicine.
Driving
Limited data is available regarding the effect of this medicine on driving.
Relevant Information
Precautions: Consult a doctor before use if you are pregnant or breastfeeding, if you have kidney disease, heart disease, or a low-phosphate or restricted-magnesium diet, or if you take regular medicines. Do not exceed the recommended dose, do not use it continuously for prolonged periods, and do not give it to children unless a doctor or pharmacist has advised. Long-term high-dose use of aluminium-containing antacids can lower phosphate levels and, in people with kidney problems, allow aluminium or magnesium to accumulate. Keep out of the reach of children.
When to See a Doctor or Pharmacist: seek advice if your symptoms persist for more than a few days, recur often, or worsen despite taking the tablets. See a doctor promptly if you have difficulty swallowing, unexplained weight loss, persistent vomiting, black or bloody stools, severe abdominal pain, or chest pain, since these need assessment. Seek emergency care immediately if you develop muscle weakness, an irregular heartbeat, confusion, swelling of the face or throat, or difficulty breathing.
Medical Review
Reviewed by:
Doctor of Medicine (MD), University of Mansoura - Manchester


