Rantinol Injection is a medication used to reduce stomach acid production and treat ulcers. It is typically administered by a doctor or nurse and should be taken regularly to prevent future problems. It relieves symptoms like indigestion and heartburn but may require longer treatment for ulcer prevention. Common side effects include headache, constipation, drowsiness, and diarrhea. Before taking it, inform your doctor about any kidney or liver problems, and any other medications you are taking. Rantinol Injection is safe to take during pregnancy and breastfeeding if prescribed by a doctor and avoid alcohol to reduce stomach acid levels.