Buscopan IBS Relief Tablets pr effective stomach pain relief. It was first developed over 50 years ago, to pr stomach pain relief to people suffering with abdominal pain and discomfort due to cramps of the gastro-intestinal tract. It is now the most popular selling antispasmodic treatment worldwide, sold in more than 50 countries around the world. Buscopan IBS Relief tablets contain the active ingredient Hyoscine Butylbromide, which is derived from natural hyoscine, extracted from the duboisia plant. Hyoscine butylbromide is from a family of drugs known as antispasmodics. Buscopan helps to relieve the abdominal cramps which cause pain and discomfort associated with Irritable Bowel Syndrome by relaxing the cramping muscles of your bowel. Please note that results may vary.