Is there an association between sumatriptan (a serotonin receptor agonist) and retroperitoneal fibrosis?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: May 14, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

There is no established direct relation between sumatriptan and retroperitoneal fibrosis based on the provided evidence. Sumatriptan belongs to the triptan class of medications, which are serotonin receptor agonists used to treat migraines. The provided studies 1 discuss the efficacy, dosage, and contraindications of triptans, including sumatriptan, but do not mention a direct link to retroperitoneal fibrosis.

Some key points to consider:

  • Sumatriptan is effective in treating migraines, with a rapid onset of action 1.
  • The medication should be used with caution in patients with certain medical conditions, such as uncontrolled hypertension or heart disease 1.
  • While there is a potential association between ergot derivatives and fibrotic conditions, including retroperitoneal fibrosis, the risk appears to be higher with ergot derivatives than with triptans like sumatriptan.
  • For patients taking sumatriptan who develop unexplained back or flank pain, abdominal discomfort, or renal dysfunction, healthcare providers should consider retroperitoneal fibrosis in the differential diagnosis, especially with long-term use 1.

However, it is essential to note that the absolute risk of retroperitoneal fibrosis associated with sumatriptan is not established, and the benefits of sumatriptan for migraine treatment outweigh this potential risk for most patients. Regular monitoring is not typically required specifically for this rare complication in patients without symptoms or risk factors. The most recent and highest quality study 1 provides guidance on the diagnosis and management of migraine, including the use of triptans like sumatriptan, but does not address the relation between sumatriptan and retroperitoneal fibrosis.

From the Research

Relation between Sumatriptan and Retroperitoneal Fibrosis

  • There is no direct evidence in the provided studies to suggest a relation between sumatriptan and retroperitoneal fibrosis 2, 3, 4, 5, 6.
  • The studies primarily focus on the efficacy and safety of sumatriptan in the treatment of migraine attacks, with no mention of retroperitoneal fibrosis as a potential side effect or related condition.
  • Retroperitoneal fibrosis is a rare condition characterized by the proliferation of fibrous tissue in the retroperitoneum, and it is not mentioned in any of the provided studies as being related to sumatriptan use 2, 3, 4, 5, 6.
  • Therefore, based on the available evidence, there is no known relation between sumatriptan and retroperitoneal fibrosis 2, 3, 4, 5, 6.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.