Xermelo (telotristat ethyl) — Uses, Dosage, Side Effects & Safety

Drug class: Tryptophan hydroxylase inhibitor (antidiarrheal for carcinoid syndrome)

Overview

Xermelo is a prescription medication used to treat diarrhea associated with carcinoid syndrome in adults who are already receiving somatostatin analog (SSA) therapy, such as octreotide or lanreotide. Carcinoid syndrome is a condition caused by certain neuroendocrine tumors that release excessive serotonin, leading to frequent, watery stools and other symptoms. Xermelo works by blocking an enzyme called tryptophan hydroxylase, which reduces the production of serotonin in the gut. Lowering serotonin levels helps decrease the frequency and severity of diarrhea episodes. This medication is not a cure for carcinoid tumors but helps manage one of the most troublesome symptoms, improving quality of life for many patients. Patients should know that Xermelo is used in combination with SSA therapy, not as a standalone treatment. It is important to take the medication exactly as prescribed and to report any unusual symptoms to your healthcare provider.

Therapeutic uses

  • Carcinoid syndrome diarrhea
  • Diarrhea associated with neuroendocrine tumors
  • Symptomatic treatment of carcinoid syndrome

Common side effects

  • Nausea
  • Headache
  • Abdominal pain
  • Fatigue
  • Depression
  • Peripheral edema
  • Flatulence

Frequently Asked Questions about Xermelo

What is Xermelo used for?

Xermelo is used to reduce the frequency of diarrhea in adults with carcinoid syndrome who are already receiving somatostatin analog therapy.

How does Xermelo work?

Xermelo blocks the enzyme tryptophan hydroxylase, reducing serotonin production in the gut and helping control diarrhea caused by carcinoid syndrome.

Can Xermelo be used alone?

No, Xermelo is intended to be used in combination with somatostatin analog therapy, not as a standalone treatment.

What should I do if I miss a dose?

Take the missed dose as soon as you remember with food. If it is almost time for your next dose, skip the missed dose and continue your regular schedule. Do not double up doses.

Are there any serious side effects I should watch for?

Yes, serious side effects include liver problems, severe allergic reactions, and serotonin syndrome. Contact your doctor immediately if you notice symptoms such as jaundice, swelling, or confusion.

Is Xermelo safe during pregnancy or breastfeeding?

There is limited data on the use of Xermelo during pregnancy or breastfeeding. Discuss the risks and benefits with your healthcare provider before use.

Can children take Xermelo?

Xermelo is not recommended for use in children under 18 years, as safety and effectiveness have not been established in this age group.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.