Asenapine and Atenolol: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 15, 2026 · Source data updated Jul 11, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Asenapine
Atenolol
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
You're taking asenapine (Saphris) along with atenolol (Tenormin). Both of these medicines can lower your blood pressure. Atenolol is a beta blocker that slows the heart and eases pressure, and asenapine can also drop your blood pressure, especially when you stand up. Together they can add up, so you might feel dizzy, lightheaded, or faint, particularly when getting up from sitting or lying down.
The good news is this is easy to manage. Your care team can check your blood pressure and adjust your doses to fit you. If you feel dizzy, rise slowly and let your pharmacist or doctor know. Keep taking both unless they tell you otherwise.
Effect: Additive hypotensive effect from coadministration of asenapine and atenolol, increasing risk of hypotension (including orthostatic).
- Mechanism: Pharmacodynamic (additive), not a CYP or transporter-based PK interaction. Asenapine has alpha-adrenergic antagonism and atenolol reduces cardiac output/blood pressure.
- Direction: Additive BP lowering (neither is a prodrug requiring activation here).
- Onset: Unspecified.
- Evidence: Theoretical.
- Management: Monitor blood pressure and for orthostatic symptoms; individualize and titrate doses as needed. Counsel on gradual positional changes.
What happens
An increased risk of hypotension
Interaction Deep Dive
Taking asenapine together with beta blockers can heighten the likelihood of hypotension. Blood pressure should be monitored and doses modified as needed123.
Why it happens (mechanism)
Additive hypotensive effects
How to manage this interaction
This interaction is usually straightforward to manage, and you should keep taking both medicines exactly as prescribed unless your prescriber tells you otherwise.
- Your care team may check your blood pressure more closely, especially when starting or changing either drug.
- Doses may need to be adjusted and individualized by your team based on your readings.
- Stand up slowly to reduce lightheadedness.
- Tell your pharmacist or doctor if you feel dizzy, faint, or unusually tired.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Asenapine and Atenolol together?
Asenapine and atenolol can both lower blood pressure, so together they may cause dizziness or lightheadedness; keep taking both as prescribed and let your care team monitor your blood pressure and adjust doses if needed. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Asenapine and Atenolol interaction?
It is rated moderate. Can be significant — usually manageable with monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Asenapine and Atenolol interaction managed?
This interaction is usually straightforward to manage, and you should keep taking both medicines exactly as prescribed unless your prescriber tells you otherwise. Your care team may check your blood pressure more closely, especially when starting or changing either drug. Doses may need to be adjusted and individualized by your team based on your readings. Stand up slowly to reduce lightheadedness.… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
Questions for your pharmacist
- Does my dose of Asenapine or Atenolol need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there anything you'd monitor while I'm on both?
References (3)
- Product Information: SAPHRIS(R) oral sublingual tablets, asenapine oral sublingual tablets. Allergan USA, Inc. (per DailyMed), Madison, NJ, 2021. DailyMed
- Product Information: SECUADO® transdermal system, asenapine transdermal system. Noven Therapeutics LLC (per DailyMed), Miami, FL, 2023. DailyMed
- Product Information: Asenapine oral sublingual tablets, asenapine oral sublingual tablets. Alembic Pharmaceuticals Ltd (per DailyMed), Bedminster, NJ, 2025. DailyMed
Keep reading about Asenapine
Keep reading about Atenolol
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