|Ipratropium bromide||Muscarinic antagonist|
|Salbutamol||Short-acting β2-adrenergic agonist|
The combination preparation ipratropium bromide/salbutamol is a formulation containing ipratropium bromide (an anticholinergic) and salbutamol sulfate (albuterol sulfate, a β2-adrenergic receptor agonist) used in the management of chronic obstructive pulmonary disease (COPD) and asthma (not an FDA approved usage). It is marketed by Boehringer Ingelheim as a metered dose inhaler (MDI) and nebuliser under the trade name Combivent. It is also marketed by Dey, L.P. (Napa, California) under the brand name DuoNeb as a nebulizer. In Italy it is known as Breva. The chemical is sold in India by Cipla as duolin. 
- "Expert Panel 3. Expert panel report 3: guidelines for the diagnosis and management of asthma.". ): National Institutes of Health. National Heart, Lung, and Blood Institute. 2007.
- National Asthma Education and Prevention Program Expert Panel 3. Expert panel report 3: guidelines for the diagnosis and management of asthma. Bethesda (MD): National Institutes of Health. National Heart, Lung, and Blood Institute; 2007 Aug. NIH Publication No. 07-4051.