GSK-961081产品是GSK-961081 is a bi-functional molecule with both muscarinic antagonism and β2-agonism (MABA) properties. GSK-961081 displays high affinity for hM2 (Ki = 1.4 nM), hM3 muscarinic receptors (Ki = 1.3 nM) and hβ2-adrenoceptors (Ki = 3.7 nM).