simethicone, Phazyme, Flatulex, Mylicon, Gas-X, Gas X Extra Strength, Mylanta Gas, Gas-X Ultra

Pharmacy Author:
Medical and Pharmacy Editor:

GENERIC NAME: simethicone

BRAND NAME: Phazyme, Flatulex, Mylicon, Gas-X, Gas X Extra Strength, Mylanta Gas, Gas-X Ultra Strength

DRUG CLASS AND MECHANISM: Simethicone is an anti-gas (anti-flatulence) medication. It acts in the stomach and intestines to change the surface tension of gas bubbles, enabling their breakdown and the formation of larger bubbles. In this way it is believed that gas can be eliminated more easily by belching or passing flatus. Simethicone was approved by the FDA in 1952.

GENERIC AVAILABLE: Yes

PRESCRIPTION: No

PREPARATIONS: Liquid drops: 40 mg per 0.6 ml. Chewable tablets: 40, 80 and 125 mg. Capsules: 125 and 180 mg.

STORAGE: Preparations should be stored at room temperature, 15-30 C (59-86 F).

PRESCRIBED FOR: Simethicone relieves abdominal pain due to excessive gas in the digestive tract. It also is given to patients undergoing upper abdominal ultrasound imaging.

DOSING: The recommended dose for relieving gas is 40-125 mg 4 times daily after meals and at bedtime. The drops can be mixed with water, infant formula or other liquids for use in small children.

DRUG INTERACTIONS: There are no known drug interactions with simethicone.

PREGNANCY: Safety during pregnancy has not been adequately evaluated. Simethicone is generally considered safe during pregnancy because it does not cross the placenta.

NURSING MOTHERS: Simethicone is considered safe during lactation because it is not absorbed into the body and infants are often treated with simethicone.

SIDE EFFECTS: Simethicone may cause diarrhea, nausea, vomiting, and headache.

REFERENCES:

FDA Prescribing Information.

Black R, Hill A. Over the counter medications in pregnancy. Am Fam Physician. 2003 Jun 15;67(12):2517-2524.


Last Editorial Review: 2/2/2012




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