What is Buscopan used for?
Buscopan is used to relieve colicky abdominal pain that is caused by painful spasms in the muscles of the gastro-intestinal (GI) or genito-urinary (GU) tract.
Spasms of the stomach, intestines or bile duct (gastro-intestinal tract), including those associated with irritable bowel syndrome (IBS).
Spasms of the bladder or urinary system (genito-urinary tract).
How does Buscopan work?
Buscopan tablets contain the active ingredient hyoscine butylbromide.
Hyoscine works by relaxing the muscle that is found in the walls of the stomach, intestines, bowel, bile duct and urinary tract. This type of muscle is called smooth muscle or involuntary muscle. It normally contracts and relaxes in response to natural body chemicals called neurotransmitters. The contractions are caused by a neurotransmitter called acetylcholine. These contractions are not under our conscious control and we are not normally aware of them. However, if the muscles go into spasm this can cause pain.
Hyoscine stops the spasms in the smooth muscle by preventing acetylcholine from acting on the muscle. It does this by blocking the receptors on the muscle cells that the acetylcholine would normally act on.
By preventing acetylcholine from acting on the muscle in the GI and GU tracts, hyoscine reduces the muscle contractions. This allows the muscle to relax and reduces the painful spasms and cramps.