Omisec is a prescription medication containing 20mg of omeprazole per capsule, available in a pack of 14 capsules. It is manufactured by United Pharmaceuticals and is used to treat certain stomach and esophageal conditions. This medication belongs to a class of drugs called proton pump inhibitors (PPIs). Omeprazole works by reducing acid production in the stomach. As this is a prescription medication, please consult your healthcare provider for proper dosage and usage instructions.