Physical-chemical compatibility of cromolyn sodium nebulizer solution--bronchodilator inhalant solution admixtures.

Cromolyn sodium nebulizer solution, 1%, is physically and chemically compatible (stable) for up to 60 minutes when mixed in vitro with metaproterenol, isoproterenol, isoetharine, epinephrine, terbutaline, and acetylcysteine inhalant solutions, respectively. Similarly, cromolyn does not adversely affect the stability of the individual bronchodilator/mucolytic drugs in the admixtures. Adding a bronchodilator/mucolytic agent to a cromolyn nebulizer solution should not negatively influence the in vivo efficacy or safety of either active ingredient.