REVIEW An anticholinergic drug used for the treatment of chronic obstructive pulmonary disease and acute asthma. It blocks the muscarinic acetylcholine receptors in the smooth muscles of the bronchi in the lungs, opening the bronchi.. Ipratropium blocks muscarinic acetylcholine receptors, without specificity for subtypes, and therefore promotes the degradation of cyclic guanosine monophosphate (cGMP), resulting in a decreased intracellular concentration of cGMP.
Glossop PA, Watson CA, Price DA, Bunnage ME, Middleton DS, Wood A, James K, Roberts D, Strang RS, Yeadon M, Perros-Huguet C, Clarke NP, Trevethick MA, Machin I, Stuart EF, Evans SM, Harrison AC, Fairman DA, Agoram B, Burrows JL, Feeder N, Fulton CK, Dillon BR, Entwistle DA, Spence FJ (2011). Inhalation by design: novel tertiary amine muscarinic M3 receptor antagonists with slow off-rate binding kinetics for inhaled once-daily treatment of chronic obstructive pulmonary disease. J Med Chem. 54(19):6888-904. PMID 21870878.
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