Ipratropium
Ipratropium. Quaternary ammonium muscarinic antagonist — bronchodilation via M3 blockade in airway smooth muscle. Quaternary structure limits… Inhaled half-life 2 h.
Quaternary ammonium muscarinic antagonist — bronchodilation via M3 blockade in airway smooth muscle. Quaternary structure limits systemic absorption from inhaled route. Combined with salbutamol (Combivent) for acute COPD.
Sources: PMID:16847442