A 49-year-old woman comes to the physician for a routine health maintenance examination. She says that she will be flying on an airplane tomorrow for her cousin’s wedding across the country and that the motion tends to make her nauseous. She has no past medical history. A drug with which of the following mechanisms of action is most appropriate for this patient?
α1 agonism
α1 antagonism
α2 agonism
α2 antagonism
β1 antagonism
M3 agonism
M3 antagonism