Question: A 17-year-old male with a history of asthma presents to the urgent care with an asthma exacerbation due to having an upper respiratory infection. His daily medications are a short-acting beta-agonist, loratadine, and a corticosteroid inhaler to control his asthma and allergies. He reports that he is using his albuterol (short-acting beta agonist) daily. On physical examination, he has diffuse bilateral wheezing bilaterally, and he is not using accessory muscles. The provider adds an oral medication to control his asthma symptoms and allergies. What is one of the most serious adverse effects of the medication?
A. Thrush B. Neuropsychiatric events C. Headache D. Nausea and vomiting