Apixaban and Trazodone: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Aug 8, 2026 · Source data updated Jul 11, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Trazodone
Apixaban
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 trazodone (often used for sleep or mood) along with apixaban (Eliquis), a blood thinner. Here's the simple version: apixaban already lowers your body's ability to form clots. Trazodone can affect how your platelets work (platelets are the cells that help stop bleeding), so taking both together may slightly raise your chance of bleeding or bruising.
This is based mostly on theory and reports, not proof that it happens to everyone. Watch for things like easy bruising, nosebleeds, or bleeding that won't stop. Please don't stop either medicine on your own. Your care team knows about this combination and can keep an eye on you and adjust things if needed.
Effect: Additive increase in bleeding risk (pharmacodynamic, not pharmacokinetic).
- Mechanism: Apixaban is a direct factor Xa inhibitor; trazodone, via serotonin reuptake inhibition, impairs platelet aggregation. Combined effects on hemostasis are additive. Neither is a prodrug relevant here.
- Direction/magnitude: Increased bleeding tendency; magnitude not quantified.
- Onset: Unspecified.
- Evidence: Theoretical, supported by case reports and epidemiologic data linking serotonergic agents to GI bleeding.
- Management: Counsel on bleeding signs (ecchymosis, epistaxis, GI bleed). Monitor Hgb/Hct and clinical bleeding. Individualize therapy; consider alternatives if bleeding risk is high.
What happens
Increased risk of bleeding
Interaction Deep Dive
When traZODone is taken together with other agents that influence hemostasis, such as anticoagulants, the potential for bleeding may rise. Patients should be advised of the bleeding risk tied to this combined use. An association between the use of medications that impair serotonin reuptake (traZODone among them) and the development of gastrointestinal bleeding has been shown in case reports as well as in epidemiological studies of case-control and cohort design. The bleeding manifestations linked to agents that impair serotonin reuptake have spanned from ecchymosis, hematoma, epistaxis, and petechiae all the way to hemorrhages that are life-threatening1.
Why it happens (mechanism)
Additive effects on hemostasis
How to manage this interaction
This combination can be used safely for many people, but your care team will watch you more closely for bleeding.
- Keep taking both exactly as prescribed unless your doctor or pharmacist tells you otherwise.
- Watch for warning signs: unusual bruising, nosebleeds, pinpoint red spots, bleeding gums, blood in urine or stool, black tarry stools, or vomiting that looks like coffee grounds.
- Get urgent help for heavy or uncontrolled bleeding.
- Ask your team whether your dose should be individualized or whether an alternative to trazodone makes sense for you.
Your prescriber may monitor your blood counts and overall bleeding risk to keep this combination safe.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
1 report — tap to read
a) Case reports along with epidemiological investigations (of case-control and cohort design) have shown a link between the use of agents that interfere with serotonin reuptake (traZODone among them) and the development of gastrointestinal bleeding. Bleeding events associated with agents that interfere with serotonin reuptake have spanned from ecchymosis, hematoma, epistaxis, and petechiae to hemorrhages that are life-threatening 1.
Common questions
Can I take Apixaban and Trazodone together?
Taking trazodone with apixaban may modestly raise your bleeding risk, so watch for unusual bruising or bleeding and keep both medicines as prescribed while your care team monitors you. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Apixaban and Trazodone 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 Apixaban and Trazodone interaction managed?
This combination can be used safely for many people, but your care team will watch you more closely for bleeding. Keep taking both exactly as prescribed unless your doctor or pharmacist tells you otherwise. Watch for warning signs: unusual bruising, nosebleeds, pinpoint red spots, bleeding gums, blood in urine or stool, black tarry stools, or vomiting that looks like coffee grounds. Get urgent hel… 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:
- NyQuil With Trazodone Interaction
- Help! Trazodone Is Not Working Well To Help Me Sleep
- Can Trazodone Cause A False-Positive For Amphetamines?
- Can You Take Baobab Fiber With Eliquis (Apixaban)?
- Can You Replace an Evening Apixaban Dose With Berberine?
- Can I Take Ginkgo With Apixaban (Eliquis) and Atorvastatin?
Questions for your pharmacist
- Does my dose of Apixaban or Trazodone 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: Trazodone HCl oral tablets, trazodone HCl oral tablets. Rising Pharma Holdings, Inc (per DailyMed), East Brunswick, NJ, 2025. DailyMed
Keep reading about Trazodone
Keep reading about Apixaban
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.
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