Simethicone Chewable Tablets for Gas and Bloating Relief Gas-X Extra Strength Chewable Gas Relief Tablets with Simethicone 125 mg deliver fast, extra strength gas relief. These chewable tablets go to work in minutes, rescuing you from embarrassing situations and helping you get back to feeling like yourself. Gas-X uses 125 mg simethicone to break up gas bubbles in your stomach and intestines. Once this trapped gas is broken down, your body can deal with the gas properly. These portable and easy to take simethicone chewable tablets come in tasty cherry flavor. Adults and children 12 years of age and older may chew one or two antigas chews as needed, not to exceed four gas tablets in 24 hours unless directed by a doctor. Trust Gas-X, the number 1 doctor recommended OTC anti-gas product.(1) (1) ProVoice Survey fielded from March 1, 2020 to February 28, 2021, and recording recommendations for OTC Anti-Gas products