Drug Drug target Drug-target Interaction Mechanism of action
Ipratropium Muscarinic receptor Competitive antagonism In asthma, ipratropium antagonises the action of acetylcholine at muscarinic receptors in airways to reduce mucosal secretions.
Neostigmine Acetylcholinesterase Inhibitor In myasthenia gravis: neostigmine inhibits acetylcholinesterase at the neuromuscular junction and reduces the breakdown of acetylcholine and the subsequent increase in synaptic acetylcholine concentration leads to increased muscle tone.