Abiraterone Acetate and Acarbose: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 10, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Abiraterone Acetate
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're taking abiraterone (a prostate cancer medicine) along with acarbose, which helps control your blood sugar. When these are used together, your blood sugar can drop lower than expected, and in some cases that low blood sugar can be serious. Watch for signs like shakiness, sweating, dizziness, confusion, or feeling suddenly very hungry.
The good news is this is very manageable. Your care team can check your blood sugar more often and, if needed, adjust your diabetes medicine dose. Please don't stop or change either medicine on your own, just let your doctor or pharmacist know so they can keep an eye on things.
Effect: Additive risk of severe hypoglycemia when abiraterone acetate is combined with acarbose.
Mechanism: Additive pharmacodynamic hypoglycemic effect. Abiraterone may enhance the glucose-lowering activity of antidiabetic agents. Neither drug is a prodrug relevant to this PD interaction.
- Direction: Increased hypoglycemic effect
- Severity: Major; Evidence: probable; Onset: unspecified
- Management: Monitor blood glucose during coadministration; assess and individualize acarbose (or other antidiabetic) dosing as needed. Educate patient on hypoglycemia recognition and treatment.
What happens
An increased risk of severe hypoglycemia
Interaction Deep Dive
When abiraterone acetate is given together with antidiabetic agents, the likelihood of severe hypoglycemia may rise. In diabetic patients receiving both drugs, blood glucose should be monitored, and clinicians should evaluate whether the antidiabetic agent dose needs to be adjusted1.
Why it happens (mechanism)
Additive hypoglycemia
How to manage this interaction
Both medicines can be continued, but your team will want to keep a closer watch on your blood sugar.
- Keep taking both drugs exactly as prescribed unless your prescriber tells you otherwise.
- Your care team may check your blood glucose more often while you're on both.
- Your diabetes medicine dose may need to be adjusted and individualized by your care team.
- Learn the signs of low blood sugar (shakiness, sweating, confusion) and how to treat it quickly.
- Tell your pharmacist or doctor about any low blood sugar episodes.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Abiraterone Acetate and Acarbose together?
Taking abiraterone with acarbose can add to the blood-sugar-lowering effect and raise the risk of serious hypoglycemia, so your care team will monitor your glucose more closely and may adjust your diabetes medicine. Keep taking both as prescribed and report any low blood sugar symptoms. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Abiraterone Acetate and Acarbose interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Abiraterone Acetate and Acarbose interaction managed?
Both medicines can be continued, but your team will want to keep a closer watch on your blood sugar. Keep taking both drugs exactly as prescribed unless your prescriber tells you otherwise. Your care team may check your blood glucose more often while you're on both. Your diabetes medicine dose may need to be adjusted and individualized by your care team. Learn the signs of low blood sugar (shakine… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
Questions for your pharmacist
- Does my dose of Abiraterone Acetate 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 a safer alternative to one of these medications for me?
References (1)
- Product Information: AKEEGA(TM) oral tablets, niraparib, abiraterone acetate oral tablets. Janssen Biotech, Inc. (per FDA), Horsham, PA, 2023. DailyMed
Keep reading about Abiraterone Acetate
Keep reading about Acarbose
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