Esomeprazole is a medication that belongs to a class of drugs known as proton pump inhibitors (PPIs). It is primarily used to reduce the amount of stomach acid produced, helping to treat conditions like gastroesophageal reflux disease (GERD) and peptic ulcers. By decreasing acid production, esomeprazole can alleviate symptoms such as heartburn and discomfort. This medication is typically taken orally, either as a tablet or a liquid, and is often prescribed for short-term use. Common side effects may include headache, nausea, and diarrhea. Long-term use should be monitored by a healthcare professional due to potential risks, such as nutrient deficiencies and increased susceptibility to certain infections.