Antigases, commonly referred to as anti-gas agents, are substances or medications designed to counteract the effects of toxic gases or to alleviate symptoms caused by gas exposure. They can act by neutralizing harmful agents, providing protective effects, or facilitating the removal of gases from the body. In some contexts, they may also refer to treatments that reduce gas buildup in the digestive system. The specific use and formulation of antigases can vary depending on the type of gas and the intended therapeutic effect.