Nexum (Esomeprazole) – Uses, Dosage, Side Effects, and Complete Guide
Introduction Nexum is the brand name of Esomeprazole , which is the S-isomer of Omeprazole. It belongs to the class of proton pump inhibitors (PPIs) and is commonly prescribed to reduce excessive gastric acid secretion. Unlike antacids that provide quick temporary relief, Esomeprazole works at the cellular level by blocking acid production in the stomach, offering long-lasting relief from acid-related disorders. Available in 20 mg and 40 mg strengths , Nexum is widely used in Pakistan and across the globe for conditions like GERD (Gastroesophageal Reflux Disease), peptic ulcers, erosive esophagitis (EE), NSAID-induced gastric ulcers, and Helicobacter pylori infection . Mechanism of Action Esomeprazole belongs to the substituted benzimidazole group. It acts by selectively inhibiting the H+/K+ ATPase enzyme system (proton pump) in the stomach lining. This inhibition suppresses gastric acid secretion. Esomeprazole is a time-dependent inhibitor of acid production. P...