Simethicone (also spelled simeticone) is an over-the-counter antiflatulent widely used in the US to relieve gas, bloating, and infant colic. Established brands such as Gas-X, Mylicon, and Phazyme, along with a large range of low-cost store-brand products, dominate retail pharmacy, supermarket, and online channels. Demand is supported by rising digestive discomfort, strong consumer self-care...