Drug interactions
Atenolol-chlorthalidone + Fentanyl transmucosal
Severity: Minor
Atenolol-chlorthalidone and Fentanyl transmucosal: minor 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
Opioids such as fentanyl can promote antidiuretic hormone release and urinary retention, and so blunt the effect of chlorthalidone. Fentanyl can also add to orthostatic hypotension.
What this interaction means in plain words
Atenolol-chlorthalidone and Fentanyl transmucosal have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Opioid-induced ADH release and urinary retention reduce diuretic effect, while opioid-related vasodilation adds to hypotension.
What to do
Monitor blood pressure, urine output and fluid status. Adjust the diuretic dose if efficacy falls.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Atenolol-chlorthalidone
Frequently asked questions
Can I take Atenolol-chlorthalidone with Fentanyl transmucosal?
MediHelp rates the interaction as minor. Atenolol-chlorthalidone and Fentanyl transmucosal have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Opioids such as fentanyl can promote antidiuretic hormone release and urinary retention, and so blunt the effect of chlorthalidone. Fentanyl can also add to orthostatic hypotension.
How serious is the interaction between Atenolol-chlorthalidone and Fentanyl transmucosal?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure, urine output and fluid status. Adjust the diuretic dose if efficacy falls.
What other medicines interact with Atenolol-chlorthalidone?
MediHelp also lists interactions of Atenolol-chlorthalidone with, for example, Acebutolol, Aldesleukin, Amiodarone. The full list is on the Atenolol-chlorthalidone page.
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