Histrelin 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
Sertraline
No brand names on recordHistrelin
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.
Both sertraline (an antidepressant) and histrelin (a hormone medicine, brand Supprelin) can each affect your heart's electrical rhythm in a way called QT prolongation. When two medicines that do this are taken together, the effect can add up, which slightly raises the chance of an irregular heartbeat.
This concern is based on theory rather than lots of real-world cases, so try not to worry. The important thing is that your care team knows how to handle this. Please don't stop or change either medicine on your own. Just talk with your pharmacist or doctor so they can review whether these two are the right combination for you.
Effect: Additive risk of QT interval prolongation and potential ventricular arrhythmias (including torsades de pointes) with concurrent sertraline and histrelin.
Mechanism: Pharmacodynamic additive QT prolongation; both agents carry independent QT-prolonging potential. This is a PD interaction, not a metabolic/prodrug issue.
Evidence: Theoretical. Onset: Unspecified. Severity: Major.
- Avoid coadministration where clinically feasible.
- If both are required, obtain baseline and follow-up ECG to monitor QTc.
- Correct electrolytes (K+, Mg2+, Ca2+) and review other QT-prolonging agents.
- Individualize therapy and monitor for palpitations, syncope, or arrhythmia.
What happens
An increased risk of QT interval prolongation
Interaction Deep Dive
Concurrent use of sertraline with this drug should be avoided, since the combination can heighten the likelihood of QT prolongation and/or ventricular arrhythmias1.
Why it happens (mechanism)
Additive QT interval prolongation
How to manage this interaction
Both medicines can lengthen the heart's QT interval, so guidance is to avoid using them together when possible. Your care team decides this, not you.
- Keep taking both as prescribed unless your prescriber tells you otherwise.
- Ask your pharmacist or doctor whether this combination is right for you or if an alternative is available.
- Your team may monitor you more closely, which can include an ECG and checking blood electrolytes.
- Report any fainting, palpitations, dizziness, or irregular heartbeat right away.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Histrelin and Sertraline together?
Sertraline and histrelin can each prolong the QT interval, so combining them may add up and raise arrhythmia risk; guidance is to avoid using them together, so check with your pharmacist or doctor about the best option for you. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Histrelin 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 Histrelin and Sertraline interaction managed?
Both medicines can lengthen the heart's QT interval, so guidance is to avoid using them together when possible. Your care team decides this, not you. Keep taking both as prescribed unless your prescriber tells you otherwise. Ask your pharmacist or doctor whether this combination is right for you or if an alternative is available. Your team may monitor you more closely, which can include an ECG and… 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 Histrelin 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 Sertraline
Keep reading about Histrelin
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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