Aspirin and Acarbose: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 11, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Aspirin
Acarbose
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've been prescribed both aspirin and acarbose (a diabetes medicine that lowers blood sugar). When taken together, aspirin may boost the blood-sugar-lowering effect of your diabetes medicine. That could cause your blood sugar to drop too low, which is called hypoglycemia.
Low blood sugar can make you feel shaky, sweaty, dizzy, or confused. The good news is this concern is mostly theoretical, and it's easy to keep an eye on. If you take both, just check your blood sugar carefully. Your care team can adjust things if needed, so talk with your pharmacist or doctor about the best plan for you.
Effect: Aspirin may enhance the hypoglycemic effect of acarbose, increasing risk of hypoglycemia.
- Mechanism: Proposed increased effectiveness of the oral hypoglycemic agent; salicylates may augment glucose-lowering activity. Neither agent's effect is prodrug-dependent here.
- Direction: Additive/potentiated glucose lowering (increased hypoglycemic effect).
- Onset: Unspecified.
- Evidence: Theoretical.
- Magnitude: More likely with moderate-to-higher aspirin doses; low-dose cardioprotective aspirin is less likely relevant.
- Management: Monitor blood glucose closely if used concomitantly; individualize antidiabetic dosing per response.
What happens
Increased risk of hypoglycemia
Interaction Deep Dive
Using moderate doses of aspirin at the same time as oral hypoglycemic agents can enhance the potency of the latter, potentially resulting in hypoglycemia. When these agents must be taken together, blood glucose should be monitored closely1.
Why it happens (mechanism)
Increased effectiveness of oral hypoglycemic agent
How to manage this interaction
This interaction is usually easy to manage, and you should keep taking both medicines as prescribed unless your care team tells you otherwise.
- Monitor your blood sugar carefully while taking both, especially when starting or changing your aspirin dose.
- Know the signs of low blood sugar (shakiness, sweating, dizziness, confusion, hunger) and how to treat it.
- If lows happen, your acarbose dose may need to be adjusted and individualized by your care team, or they may monitor you more closely.
- Tell your pharmacist or doctor about all aspirin use, including over-the-counter products.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Aspirin and Acarbose together?
Taking aspirin with acarbose may increase the blood-sugar-lowering effect and raise the risk of low blood sugar, so monitor your blood sugar closely and report any lows to your care team. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Aspirin and Acarbose 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 Aspirin and Acarbose interaction managed?
This interaction is usually easy to manage, and you should keep taking both medicines as prescribed unless your care team tells you otherwise. Monitor your blood sugar carefully while taking both, especially when starting or changing your aspirin dose. Know the signs of low blood sugar (shakiness, sweating, dizziness, confusion, hunger) and how to treat it. If lows happen, your acarbose dose may n… 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.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Aspirin or Acarbose 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 (1)
- Product Information: YOSPRALA(TM) oral delayed-release tablets, aspirin, omeprazole oral delayed-release tablets. Aralez Pharmaceuticals US Inc (per manufacturer), Princeton, NJ, 2016. DailyMed
Keep reading about Aspirin
Keep reading about Acarbose
These medications also interact with supplements
Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
Check another combination
Our instant two-drug interaction checker is almost here.
Still have questions about this combination?
Every question gets a real answer from a licensed pharmacist — free, and usually within a day.
Ask the pharmacist