May cause paradoxical bronchospasm. Should not be used for relief of acute episodes of bronchospasm ie, as a rescue therapy. Anticholinergic activity. Use w/ caution in patients w/ MI during the previous 6 mth, unstable angina, newly diagnosed arrhythmia w/in the previous 3 mth, or hospitalisation w/in the previous 12 mth for heart failure functional NYHA classes III & IV; patients w/ symptomatic prostatic hyperplasia or bladder-neck obstruction or narrow-angle glaucoma. Dry mouth may in the long term be associated w/ dental caries. Rare hereditary problems of galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption. Minor influence on the ability to drive & use machines. Pregnancy & lactation.