Lansoprazole, bismuth subsalicytate, metronidazole, and tetracycline

Mr. Mason fills in his prescription at his local pharmacy, catching up with the pharmacist, Linda, whom he knows very well. He tells Linda that he is quite relieved that he now has a definite diagnosis and he hopes his new medication will do the trick. Linda takes a look at the prescription and she is quite alarmed that the doctor has prescribed bismuth, as she is well aware of Mr. Mason's aspirin allergy. Linda calls Dr. Demetriou, who looks over to you, clearly disappointed. She asks you to re-consider your choice.