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Simethicone, Oral sy-METH-ih-kohn

What are other names for this medicine?

Type of medicine: antiflatulent

Generic and brand names: simethicone, oral; Equalizer Gas Relief; Gas-X; Genasyme; Little Tummys Gas Relief; Mylanta Gas; Mylicon; Phazyme Ultra Strength (There may be other brand names for this medicine.)

What is this medicine used for?

This medicine is taken by mouth to get rid of excess gas in the stomach and intestines.

What should my healthcare provider know before I take this medicine?

Before taking this medicine, tell your healthcare provider if you have ever had an allergic reaction to any medicine.

Females of child-bearing age: Talk with your healthcare provider if you are pregnant or plan to become pregnant. Do not breast-feed while taking this medicine without your healthcare provider's approval.

How do I take it?

Take this medicine as directed by your healthcare provider, or according to the instructions in the medicine package. For the best results, take it after meals and at bedtime.

This medicine comes in the form of tablets, capsules, dissolving strips, and liquid. Chew the tablets thoroughly for fast action. Do not chew the capsules. Swallow them whole. Shake the liquid well before using. Place dissolving strips on the tongue. Always drink a glass of water with the medicine.

If you are giving the liquid medicine to a baby, mix the medicine with 1 ounce of cool water, infant formula, or juice.

Avoid drinking soft drinks or eating foods that increase gas for you. Foods that create gas in one person may not create gas in another.

What if I miss a dose?

If you miss a dose, take it as soon as you remember unless it is almost time for the next scheduled dose. In that case, skip the missed dose and take the next one as directed. Do not take double doses. If you are not sure of what to do if you miss a dose, or if you miss more than one dose, contact your healthcare provider.

What if I overdose?

An acute overdose of this medicine is not likely to cause life-threatening symptoms. If you think that you or anyone else may have taken too much of this medicine, call the poison control center at 800-222-1222.

What should I watch out for?

Contact your healthcare provider if your condition does not improve in a few days or if it gets worse.

If you need emergency care, surgery, or dental work, tell the healthcare provider or dentist you are taking this medicine.

What are the possible side effects?

Life-threatening (Report these to your healthcare provider right away). If you cannot reach your healthcare provider right away, get emergency medical care or call 911 for help): Allergic reaction (hives; itching; rash; trouble breathing; chest pain or tightness in your chest; swelling of your lips, tongue, and throat).

What products might interact with this medicine?

No significant drug interactions have been reported. However, do not use other similar products while you are using this one without your healthcare provider's approval.

If you are not sure if your medicines might interact, ask your pharmacist or healthcare provider. Keep a list of all your medicines with you. List all the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Be sure that you tell all healthcare providers who treat you about all the products you are taking.

How should I store this medicine?

Store this medicine at room temperature. Keep the container tightly closed. Protect it from heat, high humidity, and bright light.


This advisory includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Ask your healthcare provider or pharmacist for more information or if you have any questions.

Ask your pharmacist for the best way to dispose of outdated medicine or medicine you have not used. Do not throw medicine in the trash.

Keep all medicines out of the reach of children.

Do not share medicines with other people.


Developed by RelayHealth.
Medication Advisor 2012.1 published by RelayHealth.
Last modified: 2010-03-26
Last reviewed: 2010-01-19
This content is reviewed periodically and is subject to change as new health information becomes available. The information is intended to inform and educate and is not a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional.
© 2012 RelayHealth and/or its affiliates. All rights reserved.
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