Simethicone (Gas-X)

Simethicone is used to relieve painful pressure caused by excess gas in the stomach and intestines. Simethicone is for use in babies, children, and adults.

Simethicone may also be used for purposes not listed in this medication guide.

uses

What is Simethicone (Gas-X) used for?

  • Dyspepsia
  • Flatulence

warnings

What is the most important information I should know about Simethicone (Gas-X)?

You should not use simethicone if you are allergic to it.

Ask a doctor or pharmacist if it is safe for you to take this medicine if you are allergic to any drugs, or if you have any type of serious illness (especially one that affects your stomach or intestines).

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

The liquid form may contain phenylalanine. Talk to your doctor before using this form of simethicone if you have phenylketonuria (PKU).

User Reviews & Rating

Overall rating for Simethicone (Gas-X)

Side Effects
4.5
Easy to Use
4.9
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4.5
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Side Effects

What are the side effects of Simethicone (Gas-X)?

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Less serious side effects may be more likely, and you may have none at all.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Pregnancy & Breastfeeding

Can I take Simethicone (Gas-X) if I’m pregnant or breastfeeding?

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

Interactions

What drugs and food should I avoid while taking Simethicone (Gas-X)?

Ask your doctor before using an antacid, and use only the type your doctor recommends. Some antacids may contain simethicone.

Dosage Guidelines & Tips

How to take Simethicone (Gas-X)?

Use Simethicone (Gas-X) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Use exactly as directed on the label, or as prescribed by your doctor.

Do not take more of this medicine than directed.

Simethicone works best if you take it after meals and at bedtime.

You must chew the chewable tablet before you swallow it.

Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).

Simethicone liquid drops can be mixed with water, baby formula, or other liquids to make swallowing easier for an infant or child.

Always follow directions on the medicine label about giving simethicone to a child. Call your doctor if the child's gas symptoms do not improve after treatment with simethicone.

You may need to follow a special diet or increase your exercise while using simethicone. Follow all instructions of your doctor or dietitian. Learn about the foods to eat or avoid to help control your condition.

Store at room temperature away from moisture, heat, and light. Do not allow the liquid form of this medicine to freeze.

What should I do if I missed a dose of Simethicone (Gas-X)?

Since simethicone is used when needed, you may not be on a dosing schedule. Skip any missed dose if it's almost time for your next dose. Do not use two doses at one time.

Overdose Signs

What happens if I overdose on Simethicone (Gas-X)?

If you think you or someone else may have overdosed on: Simethicone (Gas-X),  call your doctor or the Poison Control center
(800) 222-1222
If someone collapses or isn't breathing after taking Simethicone (Gas-X), call 911
911

Images

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Imprint: AP, 019

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Imprint: 44 137

Medical Disclaimer

Drugs A-Z provides drug information from Everyday Health and our partners, as well as ratings from our members, all in one place. Cerner Multum™ provides the data within some of the Overview, Uses, Warnings, Side Effects, Pregnancy, Interactions, Dosage, Overdose, and Images sections. The information within all other sections is proprietary to Everyday Health.