Gas-X Side Effects

Generic Name: simethicone

Medically reviewed by Drugs.com. Last updated on Jan 18, 2020.

• Consumer
• Professional
• FAQ

Note: This document contains side effect information about simethicone. Some of the dosage forms listed on this page may not apply to the brand name Gas-X.

For the Consumer

Applies to simethicone: oral capsule liquid filled, oral solution, oral suspension, oral tablet, oral tablet chewable

There have not been any common or important side effects reported with this medicine. However, if you notice any side effects, check with your doctor.

For Healthcare Professionals

Applies to simethicone: compounding liquid, compounding powder, oral capsule, oral disintegrating strip, oral liquid, oral suspension, oral tablet, oral tablet chewable

Gastrointestinal

Uncommon (0.1% to 1%): Constipation, nausea

Rare (0.01% to 0.1%): Tongue edema^[Ref]

Hypersensitivity

Rare (0.01% to 0.1%): Face edema, hypersensitivity reactions^[Ref]

Respiratory

Rare (0.01% to 0.1%): Respiratory difficulty^[Ref]

Dermatologic

Rare (0.01% to 0.1%): Pruritus, rash^[Ref]

Frequently asked questions

• Which is more effective, Beano or Gas-X for gas from ulcerative colitis?

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

Medical Disclaimer