Allen is a 49 year-year-old man seeking evaluation for “a burning sensation in my chest” often after eating and worse at night.

Week 4 Case Assignment This week we will apply pharmacology concepts to the gastrointestinal and hepatobiliary systems. Symptoms of various gastrointestinal (GI) and hepatobiliary disorders often overlap, making diagnosis and treatment challenging. For example, symptoms such as nausea, vomiting, constipation, and diarrhea are…