Immediate hypersensitivity reactions. Immediately discontinue if paradoxical bronchospasm occurs. Patients predisposed to glaucoma; insufficiently controlled DM, recent MI, severe organic heart or vascular disorders, hyperthyroidism, phaeochromocytoma, risk of narrow-angle glaucoma, prostatic hypertrophy or bladder neck obstruction; w/ underlying severe heart disease; hypoxia; cystic fibrosis. Acute, rapidly worsening dyspnoea. May lead to +ve results in nonclinical substance abuse tests (eg, doping). Possible dizziness, accommodation disorder, mydriasis & blurred vision; observe caution when driving a car or operating machinery. Patients w/ hepatic or renal insufficiency. Pregnancy (especially during 1st trimester) & lactation. Not indicated for paed patients.