Antacids treat conditions caused by the acid that is produced by the stomach such as heartburn, indigestion, and upset stomach. Antacids work by neutralizing the acid to bring relief.

They come in chewable gummies, antacid tablets, tablets that you dissolve in water to drink, or syrups.

There are a variety of antacids drugs available over the counter and on prescription. We made a comparison for antacid Malaysia that can help you in choosing the right antacid drugs for your symptoms.

1. Phillips' Milk of Magnesia

Phillips’ Milk of Magnesia provides overnight relief from occasional constipation as it contains magnesium, which works with your body’s natural process to relieve occasional constipation. 

It reduces stomach acid and increases water in the intestines which can help to induce bowel movements in a cramp-free, gentle relief manner. 

Milk of Magnesia is also used as an antacid to relieve indigestion, sour stomach, and heartburn.

It has two variations- Phillips’ Milk of Magnesia and Phillips’ Concentrated Milk of Magnesia.

Phillips' Milk of Magnesia

Adults and children aged 12 years old and older: 30 mL to 60 mL  

Children aged 6 to 11 years old: 15 mL to 30 mL 

Children under 6 years old: Consult a doctor

Phillips' Concentrated Milk of Magnesia

Adults and children aged 12 years old and older: 15 mL to 30 mL 

Children under 12 years old: Consult a doctor

For accurate dosing, only use the dosing cup provided.

2. Zellox

Zellox antacid is a syrup for acidity and gas that works by neutralizing the acids released in the stomach by acting on the inner lining of the intestine and allowing gas bubbles to come together.

Zellox-Ii Double Strength Liquid Antacid Solution is used to treat the symptoms of excessive stomach acid such as stomach upset, heartburn, and acid indigestion. It is also used to relieve symptoms of extra gas such as belching, bloating, and feelings of discomfort in the stomach and gut.

Zellox-Ii Double Strength Liquid Antacid Solution contains Aluminium Hydroxide and Magnesium Hydroxide that lower the amount of acid in the stomach. It also has Simethicone that helps to break up gas bubbles in the gut.

3. Gaviscon Regular Strength Tablets

Gaviscon Regular Strength gives day and night relief of heartburn and acid reflux. It contains aluminium and lactose as the active ingredients and is gluten-free.


Chew 2 to 4 tablets after meals and at bedtime as needed (up to 4 times a day) or as instructed by a doctor.

4. Gaviscon Double Action

Gaviscon Double Action is effective in providing relief from heartburn and indigestion. It contains calcium carbonate and its unique formulation helps to provide effective relief that is up to two times longer than regular antacid.

This product is the gaviscon for gastric that offers relief of gastrointestinal conditions.

This antacid drink does not contain sugar or gluten. You can take it even if you are pregnant or breastfeeding while benefiting from the dual relief of heartburn and indigestion.

5. Povil

Povil antacid tablet is an antacid for gastric that gives relief of gastrointestinal conditions such as gastric hyperacidity, peptic ulcer, heartburn, dyspepsia, and flatulence.


Adults and children above 12 years old: 2 tablets

Children aged 6 to 12 years old: 1 tablet. Chew tablet(s) preferably half an hour before meals or 2 hours after meals and at bedtime or as instructed by the doctor.

6. Maalox Plus Antacid

Maalox Plus Antacid is used to treat heartburn, indigestion, and flatulence. It works by reducing the amount of acid as well gas in the stomach. 

Maalox comes in suspension and tablets and it contains three active ingredients which are aluminum hydroxide, magnesium hydroxide, and simethicone.

7. Gelusil

Gelusil is a combination medicine used to treat heartburn, acid indigestion, upset stomach, bloating caused by gas, or stomach discomfort caused by eating or drinking too much.

It comes in chewable tablets and syrup. Both of them have aluminum hydroxide and simethicone as active ingredients. However, the syrup antacid usually works faster than tablets.

If you are taking the chewable gelusible tablets, chew thoroughly before swallowing, then drink a full glass of water (8 ounces or 240 milliliters).

Dosage for syrup

For immediate effect, consume 1-2 teaspoonfuls of Gelusil liquid after meals.

Use the liquid bottle’s 10 ml measuring cap for precise dosage.


Our comparison list has given the best antacid syrup, tablets, and gummies. However, you should always talk to your health care provider about any type of over-the-counter medication you intend to consume for proper prescription and dosage instruction.