Snapshot A 19-year-old man travels to Southeast Asia for a backpacking trip. He had never traveled outside the United States before this. He is excited about all the street food and spends the first night wandering night markets and eating local snacks from street stalls. The next morning, he develops watery diarrhea and a low-grade fever. He continues to have episodes of diarrhea throughout the day. He is able to drink water and eat crackers. On e-consultation with his primary care doctor’s office, where tele-travel medicine is available, he is instructed to take loperamide and hydrate with oral electrolyte solution if available. Introduction Drugs login to view 1 more bullet Mechanism of action login to view 4 more bullets Clinical use login to view 1 more bullet Adverse effects login to view 4 more bullets