title: Bronchoconstriction induced by ipratropium bromide in asthma: relation to hypotonicity.
mesh_terms: D001249:Asthma / Q000188:drug therapy; D001286:Atropine Derivatives / Q000009:adverse effects*; D001980:Bronchi / Q000187:drug effects*; D003251:Constriction, Pathologic / Q000139:chemically induced; D006801:Humans; D007038:Hypotonic Solutions; D009241:Ipratropium / Q000009:adverse effects*
chemical_list: D001286:Atropine Derivatives; D007038:Hypotonic Solutions; D009241:Ipratropium