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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
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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
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