Chlordiazepoxide is a prescription medication used to treat anxiety, panic attacks, and to help with alcohol withdrawal symptoms. It is usually taken as a pill, but can also be given as an injection. It is also known by its brand name, Librium. Clidinium is a drug that is used to treat gastrointestinal spasms, including those associated with irritable bowel syndrome (IBS). Dicyclomine is a prescription medication that can be used to treat IBS, constipation, and to help with irritable bowel syndrome symptoms.