As with most medications, ADVAIR can cause side effects. Consult your medical professional if any of these common side effects persist: diarrhea, dizziness, headache, mild muscle or bone pain, nausea and/or vomiting, nervousness, throat irritation and/or swelling, tremors Severe allergic reactions (rash, hives, itching, difficulty breathing, swelling of the mouth, face, lips or tongue), behavior changes and/or severe mood swings, blurred vision or other vision changes, burning, numbness, or tingling, tightness in the chest, fast or irregular heartbeat, seizures, severe muscle weakness, cramps, or spasms, persistent bone pain, symptoms of high blood sugar (increased thirst, urination, or hunger), insomnia, tiredness or weakness, vaginal odor or discharge, weight gain, worsening of asthma or COPD symptoms