1) Agent 
An antiflatulent agent is a drug used for the alleviation or prevention of excessive intestinal gas, i.e., flatulence. ==Mechanisms of action== === Preventing gas === === Relieving gas === For the alleviation of flatulence, an antifoaming agent such as simethicone may be taken orally. This agent will coalesce the smaller gas bubbles into larger bu...
(an″te-) (an″ti-flat´u-lәnt) relieving or preventing flatulence. an agent that so acts.
[n] - any agent that reduces intestinal gas
noun any agent that reduces intestinal gas