Ipratropium bromide (Sch 1000) hydrate is a muscarinic receptor antagonist, with IC50s of 2.9 nM, 2 nM, and 1.7 nM for M1, M2, and M3 receptors, respectively. It relaxes smooth muscle and can be used in the research for COPD (chronic obstructive pulmonary disease) and asthma.
- Muscarinic receptor antagonist
- Relaxes smooth muscle
- Potential for research in COPD and asthma
- IC50s: 2.9 nM for M1, 2 nM for M2, and 1.7 nM for M3 receptors