Esomeprazole is a proton pump inhibitor (PPI) that works by blocking the enzyme responsible for producing stomach acid, thereby reducing excess acid secretion. It is commonly used to treat stomach ulcers, gastroesophageal reflux disease (GERD), and other related conditions. Esomeprazole is a potent acid suppressant, rapidly absorbed for fast relief from severe acid reflux symptoms. Typically taken in delayed-release tablets or capsules, its dosage varies based on the condition being treated. The medication is metabolized in the liver, with a half-life of 1.5 to 2.5 hours, allowing for once-daily dosing. Esomeprazole targets the proton pump to reduce stomach acid, making it effective for conditions like dyspepsia, peptic ulcers, and erosive esophagitis. For GERD, a standard dose is 20 mg daily, and for erosive esophagitis, 40 mg daily. The exact dosage and treatment duration should be guided by a healthcare professional based on the individual’s needs.