1. bronchodilator

noun. A drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs.
Synonyms
ipratropium bromide metaproterenol Ventolin Proventil medication albuterol Atrovent Elixophyllin medicine aminophylline theophylline medicinal drug Slo-Bid Theobid Alupent ephedrine medicament
Antonyms
over-the-counter drug prescription medicine prescription drug over-the-counter medicine
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