Buscopan tablets provide fast relief from the painful cramps and discomfort of Irritable Bowel Syndrome (IBS). They have an antispasmodic action that targets the source of IBS pain, starting to work in 15 minutes to quickly relieve symptoms. Buscopan is gentle on the stomach and can be used as needed at the first sign of a flare-up. As it is absorbed into the bloodstream in very small amounts, it is unlikely to cause side effects such as drowsiness.