• Chapter 33 • Drugs Used to Treat Gastroesophageal Reflux

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• Chapter 33 • Drugs Used to Treat Gastroesophageal Reflux and Peptic Ulcer Diseases • Learning Objectives • Cite common stomach disorders that require drug therapy • Identify factors that prevent breakdown of the body’s normal defense barriers, resulting in ulcer formation • Develop health teaching for an individual with stomach disorders that incorporates pharmacologic and nonpharmacologic treatment • Physiology of the Stomach • Functions of the stomach Storing food Mixing food Emptying the stomach at rate for digestion and absorption • Physiology of the Stomach (cont’d) • Types of secretory cells Chief • Secrete pepsinogen Parietal • Secrete hydrochloric acid Mucus • Secrete mucus • Common Stomach Disorders • Gastroesophageal reflux disease (GERD) Known as heartburn Symptoms include burning, bloating, belching, regurgitation • Symptoms may resemble conditions such as ischemic heart disease, scleroderma, and gastric cancer Reflux of gastric secretions such as pepsin and hydrochloric acid • Common Stomach Disorders (cont’d) • Causes of GERD Weakened lower esophageal sphincter Delayed gastric emptying Hiatal hernia Obesity Overeating Increased acid secretion • Learning Objectives • State the drug classifications and actions used to treat stomach disorders • Drug Therapy for Gastroesophageal Reflux and Peptic Ulcer Disease Drug classes • Antacids • Histamine (H 2) receptor antagonist • Gastrointestinal protaglandins • Proton pump inhibitors • Coating agents • Prokinetic agents • Antispasmodic agents • Antacids • Histamine (H 2) receptor antagonist • GI Prostaglandins • Proton Pump Inhibitors • Coating Agents • Prokinetic Agents • Metoclopramide-Reglan • Gastric stimulant • Watch for extrapyramidal symptoms • Do not use in seizure pts • Causes fatigue, sedation • Antispasmodic Agents • Are anticholenergics • Irritable bowel syndrome, ulcerative colitis, diverticulitis • Exs. Bentyl, Belladonna, Scopalamine .

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