Menoctyl Tablet is used to treat irritable bowel syndrome (IBS) and other gastrointestinal conditions characterized by motility problems, painful bowel spasms and distension (swelling and bloating in the belly area). Irritable bowel syndrome is a common disease that affects the large intestine. IBS is also known as spastic colon, irritable colon, spastic colitis, and mucous colitis. An irritable bowel syndrome is a group of intestinal symptoms that occur together.