Drug interactions
Atenolol-chlorthalidone + Fingolimod
Severity: Major
Atenolol-chlorthalidone and Fingolimod: major interaction.
Last updated Sources: US FDA label
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
Both atenolol and fingolimod slow heart rate, and fingolimod can cause bradycardia and atrioventricular block after the first dose. Beta-blockers increase the risk of symptomatic bradycardia during initiation.
What this interaction means in plain words
Atenolol-chlorthalidone and Fingolimod can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Atenolol-chlorthalidone belongs to Cardiovascular; Fingolimod belongs to Central Nervous System.
Why it happens
Additive negative chronotropic and dromotropic effects through beta-blockade and fingolimod's S1P receptor activation in the atrium.
What to do
Obtain an ECG before starting fingolimod and monitor heart rate and blood pressure for at least 6 hours after the first dose. Consult a cardiologist or consider an alternative to the beta-blocker if feasible.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Atenolol-chlorthalidone
Other interactions of Fingolimod
- Adenovirus types 4 and 7 live + Fingolimod Contraindicated
- Bcg vaccine live + Fingolimod Contraindicated
- Fingolimod + Pimozide Contraindicated
- Fingolimod + Ponesimod Contraindicated
- Fingolimod + Quinidine Contraindicated
- Fingolimod + Siponimod Contraindicated
Frequently asked questions
Can I take Atenolol-chlorthalidone with Fingolimod?
MediHelp rates the interaction as major. Atenolol-chlorthalidone and Fingolimod can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both atenolol and fingolimod slow heart rate, and fingolimod can cause bradycardia and atrioventricular block after the first dose. Beta-blockers increase the risk of symptomatic bradycardia during initiation.
How serious is the interaction between Atenolol-chlorthalidone and Fingolimod?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain an ECG before starting fingolimod and monitor heart rate and blood pressure for at least 6 hours after the first dose. Consult a cardiologist or consider an alternative to the beta-blocker if feasible.
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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