VELOZ D Capsules contain a combination of Domperidone (30mg) and Rabeprazole (20mg). It is used to treat acid reflux, gastroesophageal reflux disease (GERD), and related conditions by reducing stomach acid production and preventing nausea and vomiting. Domperidone works by improving gut motility, while Rabeprazole is a proton pump inhibitor that decreases acid secretion in the stomach.