Maalox (Anti-Gas) : Uses, Side Effects, Interactions & More

Why is this medication prescribed?

Maalox (Simethicone) is used to treat gas symptoms, such as pressure, a feeling of fullness, and uncomfortable or painful bloating.

This drug is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

How should this medicine be used?

Maalox (Simethicone) comes as tablets, chewable tablets, capsules, and liquid to take by mouth. It is usually taken four times a day, after meals and before bedtime. Follow the directions on the package or on your prescription label carefully and ask your doctor or pharmacist to explain any parts you do not understand. Take Maalox exactly as directed. Do not take more or less, or take it more often than prescribed by your doctor.

Swallow regular tablets and capsules whole. The chewable tablets must be chewed completely before swallowing; do not swallow them whole. Do not take more than six Maalox tablets or eight Maalox capsules per day, unless your doctor tells you to. The liquid can be mixed with 1 ounce (30 milliliters) of cold water or infant formula.

What special precautions should I follow?

Before taking Maalox,

  • Tell your doctor and pharmacist if you are allergic to Maalox or any other medications.
  • Tell your doctor and pharmacist what prescription and nonprescription medications you are taking, including vitamins.
  • Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking Maalox, call your doctor.

What should I do if I forget a dose?

If you are taking Maalox on a regular schedule, take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for the one you forgot.

What side effects can this medication cause?

When taken as directed, Maalox usually has no side effects.

What should I know about storage and disposal of this medication?

Keep this medicine in the container it came in, tightly closed, and out of the reach of children. Store at room temperature and away from excess heat and moisture (not in the bathroom).

It is important to keep all medicines out of the sight and reach of children, since many containers (such as those containing weekly pills and those for eye drops, creams, patches and inhalers) are not child-resistant and small children can easily open them. To protect young children from poisoning, always close the safety caps and immediately place the medicine in a safe place, one that is upright and out of their sight and reach.

Unnecessary medications must be disposed of in special ways to ensure that pets, children, and others cannot consume them. However, you should not flush this medicine down the toilet. Instead, the best way to dispose of your medications is through a drug take-back program. Talk to your pharmacist or contact your local garbage / recycling department to find out about take-back programs in your community. Check out the FDA drug safe disposal website ( for more information if you do not have access to a take-back program.

What other information should I know?

Ask your doctor or pharmacist any questions you have about taking this medicine.

It is important that you keep a written list of all prescription and over-the-counter (over-the-counter) medications you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should take this list with you every time you visit a doctor or if you go into hospital. It is also important information to take with you in case of emergencies.

Brand Names

  • Alka-Seltzer® Anti-Gas
  • Colic Drops
  • Colicon®
  • Degas®
  • Flatulex® Drops
  • Gas Aide®
  • Gas-X®
  • Genasyme®
  • Maalox® Anti-Gas
  • Majorcon®
  • Micon-80®
  • Mylanta® Gas
  • Mylaval®
  • Mylicon®
  • Mytab® Gas
  • Phazyme®
  • SonoRx®

Disclaimer: We have made every effort to ensure that all information is factually accurate, comprehensive and up-to-date. However, this article should not be used as a licensed health care professional’s choice of knowledge and expertise. You should always consult your doctor or other health care professional before taking any medication. The information given here is subject to change and it has not been used to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions or adverse effects. The lack of warning or other information for any drug does not indicate that the combination of medicine or medication is safe, effective or appropriate for all patients or all specific uses.

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