Risek Omeprazole 20mg is a medication commonly used to treat conditions like acid reflux, gastroesophageal reflux disease (GERD), peptic ulcers, and other stomach acid-related issues. Omeprazole belongs to a class of drugs called proton pump inhibitors (PPIs). It works by reducing the amount of acid your stomach produces, helping to alleviate symptoms such as heartburn, stomach pain, and indigestion.It's typically taken once daily before a meal, and it's important to follow the dosage instructions provided by your doctor. If you have any concerns or side effects while taking this medication, it's best to consult your healthcare provider.