Deflat Simethicone 120mg is an over-the-counter medication commonly used to relieve bloating, discomfort, and pressure caused by excess gas in the stomach and intestines. Simethicone, the active ingredient, works by breaking down gas bubbles, making it easier for your body to expel them.For the 120mg chewable tablet form, the general dosage is usually 1-2 tablets taken after meals or before bedtime, but you should follow the instructions provided on the packaging or consult a healthcare professional to ensure proper use and dosage.