Lin complains to a doctor that he frequently experiences heartburn, indigestion, pain, and nausea. he also says that he vomits sometimes after meals. which type of drug would the doctor most likely prescribe to lin?

an antacid, to treat the effects of a peptic ulcer
a fiber supplement, to cure crohn’s disease
an absorbent drug, to prevent diarrhea
an immunosuppressant, to reduce anxiety