Drug interactions
Fesoterodine + Secretin
Severity: Moderate
Fesoterodine and Secretin: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Anticholinergic drugs can blunt the pancreatic response to secretin stimulation testing, which may give a false impression of pancreatic dysfunction. The concern is diagnostic accuracy rather than direct harm.
What this interaction means in plain words
Fesoterodine and Secretin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Pharmacodynamic antagonism: muscarinic blockade reduces the pancreatic response to secretin.
What to do
If feasible, withhold fesoterodine for at least five half-lives before secretin testing, or interpret results in light of the exposure. Coordinate any interruption with the prescriber.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Fesoterodine and Secretin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Fesoterodine
Frequently asked questions
Can I take Fesoterodine with Secretin?
MediHelp rates the interaction as moderate. Fesoterodine and Secretin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Anticholinergic drugs can blunt the pancreatic response to secretin stimulation testing, which may give a false impression of pancreatic dysfunction. The concern is diagnostic accuracy rather than direct harm.
How serious is the interaction between Fesoterodine and Secretin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: If feasible, withhold fesoterodine for at least five half-lives before secretin testing, or interpret results in light of the exposure. Coordinate any interruption with the prescriber.
What other medicines interact with Fesoterodine?
MediHelp also lists interactions of Fesoterodine with, for example, Bethanechol, Clozapine, Levoketoconazole. The full list is on the Fesoterodine page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
