Drug Interactions Anticholinergic agents : Although ipratropium bromide is minimally absorbed into the systemic circulation, there is some potential for an additive interaction with concomitantly used anticholinergic medications. Caution is, therefore, advised in the coadministration of ipratropium bromide and albuterol sulfate with other drugs having anticholinergic properties. ß-adrenergic agents : Caution is advised in the coadministration of ipratropium bromide and albuterol sulfate and other sympathomimetic agents due to the increased risk of adverse cardiovascular effects.
Source: FDA drug label - ipratropium bromide and albuterol sulfate