Atazanavir and Sertraline: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 2, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Atazanavir
Sertraline
No brand names on record
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 atazanavir (Reyataz), an HIV medicine, along with sertraline, an antidepressant. Each of these can, on its own, slightly affect your heart's electrical rhythm (something doctors call the QT interval). When taken together, that effect can add up and, in rare cases, raise the chance of an irregular heartbeat.
I want to be clear: this concern is based on how the drugs work in theory, not on lots of real-world reports. The good news is your care team can manage this. They may check your heart rhythm or choose a different medicine. Never stop either drug on your own, but do talk with your doctor or pharmacist about the combination.
Effect: Additive QT interval prolongation with potential for ventricular arrhythmias (including torsades de pointes) when atazanavir and sertraline are combined.
Mechanism: Pharmacodynamic additive effect on cardiac repolarization; both agents carry independent QT-prolonging potential. Neither is a prodrug relevant here.
- Direction: Additive PD effect, increased arrhythmia risk
- Onset: Unspecified
- Evidence: Theoretical
- Severity: Major
Management: Guidance on file advises avoiding coadministration. If both are required, correct electrolytes (K+, Mg2+), obtain baseline and follow-up ECGs, review other QT-prolonging agents, and individualize therapy with the care team.
What happens
An increased risk of QT interval prolongation
Interaction Deep Dive
The concurrent use of sertraline with this drug should be avoided, since combining them may heighten the likelihood of QT prolongation and/or ventricular arrhythmias1.
Why it happens (mechanism)
Additive QT interval prolongation
How to manage this interaction
Here is how a care team typically handles this combination:
- They may prefer to avoid using these two together and choose an alternative when possible.
- If both are needed, they may monitor you more closely, including checking your heart rhythm (ECG) and blood electrolytes like potassium and magnesium.
- They will review any other medicines you take that can affect heart rhythm.
What you should do: Keep taking both exactly as prescribed until you speak with your prescriber or pharmacist. Ask them whether this combination is right for you, and report any fainting, dizziness, or a fluttering or pounding heartbeat right away.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Atazanavir and Sertraline together?
Combining atazanavir and sertraline can add up to a higher risk of a dangerous heart rhythm, so your care team may avoid the pair or monitor your heart closely. Do not stop either drug on your own; talk with your doctor or pharmacist. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Atazanavir and Sertraline 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 Atazanavir and Sertraline interaction managed?
Here is how a care team typically handles this combination: They may prefer to avoid using these two together and choose an alternative when possible. If both are needed, they may monitor you more closely, including checking your heart rhythm (ECG) and blood electrolytes like potassium and magnesium. They will review any other medicines you take that can affect heart rhythm. What you should do: Ke… 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 Atazanavir or Sertraline 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: ZOLOFT oral tablets, oral solution, sertraline hydrochloride oral tablets, oral solution. Viatris Specialty LLC (per FDA), Morgantown, WV, 2023. DailyMed
Keep reading about Atazanavir
Keep reading about Sertraline
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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