Loperamide is a medication commonly used to treat diarrhea. It works by slowing down the movement in the gut, which helps to decrease the number of bowel movements and makes the stool less watery. Loperamide is available over-the-counter and is often found in products like Imodium. While loperamide is effective for managing symptoms of diarrhea, it is important to use it as directed. It should not be used for diarrhea caused by certain infections or if there is blood in the stool. Always consult a healthcare professional if symptoms persist or worsen.