Tachycardia, palpitations, cardiac arrhythmias, precipitation of angina pectoris, CNS stimulation, dry mouth, sweating, headache, dizziness, nausea, vomiting, nervousness, anxiety & tremor, hypersensitivity reactions. DPI: Salmeterol: Peripheral vasodilatation; muscle cramps; potentially serious hypokalemia w/ large doses; paradoxical bronchospasm, angioedema, urticaria, hypotension, collapse. Fluticasone: Churg-Strauss syndrome.