swelling of your face, lips, tongue
, or throat. Call your doctor at once if you have a serious side effect such as: bronchospasm (wheezing, chest tightness, trouble breathing), especially after starting a new canister of this medicine;
chest pain and fast, pounding, or uneven heart beats;
tremor, nervousness; or
dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, confusion, chest pain, shortness of breath, uneven heartbeats, seizure).