Loperamide Hydrochloride is an anti-diarrheal medication that works by slowing down gut movement, allowing for better absorption of fluids and electrolytes in the intestines. It acts on opioid receptors in the gut wall, reducing peristalsis and increasing transit time, which leads to firmer stools and reduced frequency of bowel movements. Though it doesn't cure the cause of diarrhea, it effectively manages symptoms in acute and chronic cases.