Packaging

5, 25 mg in glass bottle

Biochem/physiol Actions

J104129 is a muscarinic M3 receptor antagonist greater than 100-fold selectivity for M3 over M2 receptors. Its Ki for M3 receptors = 4.2 nM compared to a Ki of 490 nM for M2 receptors. J-104129 showed potent bronchodilator activity in animal studies.