Urticaria, drug rash, anaphylactic shock, photosensitivity, excessive perspiration, chills, dryness of mouth, nose & throat; hypotension, headache, palpitations, tachycardia, extrasystoles; sedation, dizziness, disturbed coordination, fatigue, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, euphoria, paresthesias, blurred vision, diplopia, vertigo, tinnitus, acute labyrinthitis, hysteria, neuritis, convulsions, CNS depression, hallucinations; epigastric distress, anorexia, nausea, vomiting, diarrhoea, constipation; urinary frequency, difficult urination, urinary retention; thickening of bronchial secretions, tightness of chest, wheezing, nasal stuffiness.