tiotropium bromide monohydrate
The monohydrate bromide salt form of tiotropium, a quaternary ammonium derivative of atropine and a long-acting muscarinic receptor antagonist, with bronchodilating activity. Upon inhalation, tiotropium binds to and blocks mainly muscarinic M3 receptors located on smooth muscle cells, thereby preventing smooth muscle contraction
| US brand name: | Spiriva |
|---|---|
| Chemical structure: | 1,4-Dihydro-3,5-Diiodo-1-Methyl-4-Oxopyridine-2,6-Dicarboxylic Acid 6.Beta.,7.Beta.-Epoxy-3.Beta.-Hydroxy-8-Methyl-1.Alpha.H,5.Alpha.H-Tropanium Bromide, Di-2-Thienylglycolate Monohydrate |