Does Flonase (fluticasone) cause constipation?

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Last updated: April 28, 2025View editorial policy

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From the Guidelines

Flonase (fluticasone propionate) is not generally associated with constipation as a side effect. This is because Flonase is a topical nasal spray that acts locally in the nasal passages to reduce inflammation and allergic symptoms, with minimal systemic absorption 1. The study published in the Journal of Allergy and Clinical Immunology in 2008 notes that intranasal corticosteroids, including fluticasone propionate, are not generally associated with clinically significant systemic side effects when given in recommended doses 1.

Some key points to consider about Flonase and its side effects include:

  • The most common side effects of Flonase are local and include nasal irritation, bleeding, and nasal septal perforation, which are rare and can be avoided with proper administration technique 1.
  • Systemic side effects are minimal due to the low absorption of the medication into the bloodstream.
  • If constipation is experienced while using Flonase, it is more likely due to other factors such as diet, hydration, other medications, or underlying conditions.
  • It is essential to follow the prescribed dosing instructions for Flonase and to discuss any concerns or unusual side effects with a healthcare provider.

Given the information from the study 1, it is clear that constipation is not a common side effect of Flonase, and any concerns about constipation should be evaluated in the context of overall health and other potential causes.

From the Research

Flonase and Constipation

  • There is no direct evidence in the provided studies that links Flonase (fluticasone nasal spray) to constipation 2, 3.
  • The studies focus on the systemic effects of fluticasone nasal spray, such as adrenal insufficiency and decreased bone mineral density, but do not mention constipation as a potential side effect 2.
  • One study discusses the pharmacology of fluticasone propionate, highlighting its low gastrointestinal absorption and rapid liver metabolism, which suggests that it may have minimal systemic side effects, including gastrointestinal effects like constipation 3.
  • However, it is essential to note that the absence of evidence does not necessarily mean that Flonase cannot cause constipation, but rather that there are no research papers among the provided studies to assist in answering this question.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Systemic effects of fluticasone nasal spray: report of 2 cases.

Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists, 2005

Research

Pharmacology of fluticasone propionate.

Journal of investigational allergology & clinical immunology, 1997

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.

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