Before you begin using a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use Viberzi (Eluxadoline).

Constipation: Viberzi (Eluxadoline) may cause severe constipation in some people. If you experience symptoms of severe constipation such as difficulty passing stool, sudden stomach pain, nausea, vomiting, or a bloated stomach, contact your doctor immediately.

Dependence and drug abuse: Although Viberzi (Eluxadoline) primarily works in the digestive tract, it can cause euphoria (a false sense of extreme well-being). It is possible to develop a psychological need for Viberzi (Eluxadoline).

Drowsiness/reduced alertness: Viberzi (Eluxadoline) may affect the mental or physical abilities needed to drive or operate machinery. Avoid driving, operating machinery, or performing other potentially hazardous tasks until you have determined how you are affected by Viberzi (Eluxadoline).

Liver function: Liver disease or reduced liver function may cause Viberzi (Eluxadoline) to build up in the body, causing side effects. If you have liver problems, discuss with your doctor how Viberzi (Eluxadoline) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Viberzi (Eluxadoline), and whether any special monitoring is needed. Your doctor may want to test your liver function regularly with blood tests while you are taking Viberzi (Eluxadoline).

If you experience symptoms of liver problems such as fatigue, feeling unwell, loss of appetite, nausea, yellowing of the skin or whites of the eyes, dark urine, pale stools, abdominal pain or swelling, and itchy skin, contact your doctor immediately.

Pancreatitis: Viberzi (Eluxadoline) can cause the pancreas to become inflamed. If you have a history of pancreatitis, discuss with your doctor how Viberzi (Eluxadoline) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Viberzi (Eluxadoline), and whether any special monitoring is needed.

Report signs of pancreatitis such as abdominal pain on the upper left side, back pain, nausea, fever, chills, rapid heartbeat, or swollen abdomen to your doctor immediately.

If you have a history of pancreatitis, gallstones, Alcoholism, or high triglycerides, you may be more at risk of experiencing this.

Sphincter of Oddi: The sphincter of Oddi is a muscular valve that controls the passage of digestive juices from the pancreas and gall bladder to the small intestine. In uncommon instances, this muscle can spasm, increasing the risk of inflammation of the pancreas or decreased liver function. If you experience symptoms of spasm of the sphincter of Oddi, such as nausea, vomiting, and sudden pain in the upper right hand side of the abdomen, possibly radiating toward the back, get medical help immediately.

Pregnancy: Viberzi (Eluxadoline) should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking Viberzi (Eluxadoline), contact your doctor immediately.

Breast-feeding: It is not known if Viberzi (Eluxadoline) passes into breast milk. If you are a breast-feeding mother and are taking Viberzi (Eluxadoline), it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.

Children: The safety and effectiveness of using Viberzi (Eluxadoline) have not been established for children.

Seniors: People over the age of 65 years may experience more side effects from Viberzi (Eluxadoline).