Mefenamic Acid is a non-steroidal anti-inflammatory drug (NSAID) which works by blocking the release of certain chemical messengers that cause abdominal pain and inflammation (swelling). Dicyclomine is an anticholinergic which works by relaxing the muscles in the stomach and gut (intestine). It stops sudden muscle contractions (spasms), thereby relieving cramps, pain, bloating, and discomfort. Together, they relieve menstrual cramps and colicky pain.