Hypersensitivity reactions; hypokalaemia; agitation, nervousness; tremor, headache, dizziness; myocardial ischaemia, arrhythmia, tachycardia, palpitations; paradoxical bronchospasm, cough, throat irritation; nausea, vomiting; hyperhidrosis, skin reactions eg, rash, pruritus, urticaria; muscle spasm, myalgia, muscular weakness; increased systolic BP, decreased diastolic BP.