Sertraline and Xanomeline: 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 recordXanomeline
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.
Here's what's going on. Sertraline can slow down one of your liver's cleanup enzymes (called CYP2D6). Xanomeline is partly broken down by that same enzyme. So when you take both, xanomeline may build up a bit more in your body than usual, which could mean stronger effects or more side effects.
The good news is this is a theoretical concern, meaning it's based on how the drugs work rather than lots of real-world reports. Your care team can handle it easily by adjusting your xanomeline dose if needed and keeping an eye on how you feel. Please don't change anything on your own, just check in with your pharmacist or doctor.
Mechanism: Sertraline is a moderate CYP2D6 inhibitor; xanomeline is metabolized in part via CYP2D6. Inhibition may reduce xanomeline clearance and increase its exposure (AUC/Cmax).
- Direction: Increased CYP2D6 substrate (xanomeline) exposure, so enhanced pharmacologic and adverse effects (e.g., cholinergic GI effects, cardiovascular changes).
- Evidence: Theoretical; magnitude not quantified.
- Onset: Unspecified.
- Management: If coadministered, reduce the xanomeline dose as clinically indicated and monitor for excess cholinergic effects. On sertraline discontinuation, an upward xanomeline dose adjustment may be needed. Individualize.
What happens
Increased CYP2D6 substrate exposure
Interaction Deep Dive
When sertraline, which inhibits CYP2D6, is taken together with a substrate of CYP2D6, exposure to that substrate can rise. Should the two be given together, lower the dose of the CYP2D6 substrate as needed; on the other hand, stopping sertraline may call for a higher dose of the CYP2D6 substrate1.
Why it happens (mechanism)
Inhibition of CYP2D6 substrate metabolism by sertraline
How to manage this interaction
You can take both, this is manageable. Because sertraline can slow how your body clears xanomeline, your care team may take a few simple steps:
- Adjust and individualize your xanomeline dose while you are on both drugs.
- Monitor you more closely for stronger-than-usual effects.
- Revisit the dose if sertraline is later stopped, since your xanomeline dose may then need to go back up.
What to do: Keep taking both exactly as prescribed. Tell your pharmacist or prescriber about any new or worsening symptoms, and ask before making any changes.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
1 report — tap to read
a) In studies examining drug interactions, PARoxetine produced the following effects on medications metabolized by CYP2D6. When PARoxetine 20 mg once daily reached steady-state, a single 100 mg dose of desipramine showed increases in Cmax, AUC, and t(1/2) of roughly 2-, 5-, and 3-fold, respectively. Among patients stabilized on risperiDONE 4 to 8 mg/day, daily PARoxetine 20 mg raised mean plasma risperiDONE concentrations by 4-fold, lowered 9-hydroxyrisperiDONE concentrations by 10%, and raised concentrations of the active moiety by 1.4-fold. In healthy volunteers classified as extensive CYP2D6 metabolizers, steady-state atomoxetine AUC values were 6- to 8-fold higher and Cmax values were 3- to 4-fold higher when PARoxetine was given concurrently compared with atomoxetine alone. Mean digoxin steady-state AUC fell by 15% when PARoxetine was present. In a study using propranolol 80 mg twice daily for 18 days, the steady-state plasma concentrations of propranolol remained unchanged during coadministration with PARoxetine 30 mg once daily over the last 10 days 2.
Common questions
Can I take Sertraline and Xanomeline together?
Sertraline may raise xanomeline levels by slowing its breakdown, so your team may lower the xanomeline dose and watch you more closely; keep taking both as prescribed and report any new symptoms. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Sertraline and Xanomeline 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 Sertraline and Xanomeline interaction managed?
You can take both, this is manageable. Because sertraline can slow how your body clears xanomeline, your care team may take a few simple steps: Adjust and individualize your xanomeline dose while you are on both drugs. Monitor you more closely for stronger-than-usual effects. Revisit the dose if sertraline is later stopped, since your xanomeline dose may then need to go back up. What to do: Keep t… 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 Sertraline or Xanomeline 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 (2)
- Product Information: ZOLOFT oral tablets, oral solution, sertraline hydrochloride oral tablets, oral solution. Viatris Specialty LLC (per FDA), Morgantown, WV, 2023. DailyMed
- Product Information: PEXEVA(R) oral tablets, paroxetine mesylate oral tablets. Sebela Pharmaceuticals Inc (per FDA), Roswell, GA, 2023.
Keep reading about Sertraline
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