Omnigen-D Capsules – Product Description Brand name: Omnigen-D Composition: Omeprazole 20 mg + Domperidone 10 mg Dosage form: Capsules Marketed by: Genial Lifecare Pack size: 10 × 10 capsules Uses and benefits Omnigen-D is a combination medicine used for certain acid-related stomach problems accompanied by nausea or vomiting, when prescribed by a doctor. Omeprazole: Reduces stomach acid and helps relieve acidity and acid reflux. Domperidone: Helps control nausea and vomiting and supports stomach emptying.