Anatomical Therapeutic Chemical Classification System
Glycopyrronium bromide is an inhaled long-acting muscarinic receptor antagonist (anticholinergic) for once-daily maintenance bronchodilator treatment of COPD. Glycopyrronium works by blocking the bronchoconstrictor action of acetylcholine on airway smooth muscle cells, thereby dilating the airways.
Mebeverine is a musculotropic antispasmodic with a direct action on the smooth muscle of the gastrointestinal tract, relieving spasm without affecting normal gut motility.
Otilonium bromide is endowed with a marked spasmolytic action on the smooth muscle of the digestive tract.
Simethicone is a chemically inert, non-systemic gastric defoaming agent that works by altering the elasticity of interfaces of mucus-embedded bubbles in the gastrointestinal tract. The gas bubbles are thus broken down or coalesced and in this form gas is more easily eliminated through eructation or passing flatus.
Trimebutine maleate is a noncompetitive spasmolytic agent. It possesses moderate opiate receptor affinity and has a marked antiserotonin activity especially on ‘M’ receptors. It induces regulation of spontaneous activity and increases synchronization between electrophysiological spikes and contractions in isolated guinea pig taenia coli and ileum. However, it does not alter normal motility, but regulates abnormal intestinal activity.