Sertraline and Trazodone interaction
Sertraline and Trazodone: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Sertraline (sertraline hydrochloride) label · effective 2025-08-06
Serotonin Syndrome: Increased risk when co-administered with other serotonergic agents, but also when taken alone.
If concomitant use of sertraline hydrochloride capsules with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms.
Avoid the concomitant use of drugs known to prolong the QTc interval.
The risk is increased with concomitant use of other serotonergic drugs (including triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, meperidine, methadone, tryptophan, buspirone, amphetamines, and St.
Drugs that Prolong the QTc Interval Clinical Impact: The risk of QTc prolongation and/or ventricular arrhythmias (e.g., TdP) is increased with concomitant use of sertraline hydrochloride capsules with other drugs which prolong the QTc interval [see Warnings and Precautions ( 5.10 ), Clinical Pharmacology ( 12.2 )] .
From the Trazodone (RALDESY TM) label · effective 2026-09-01
Serotonin Syndrome: Increased risk when co-administered with other serotonergic agents (e.g., SSRI, SNRI, triptans), but also when taken alone.
Serotonin Syndrome SSRIs, including RALDESY, can precipitate serotonin syndrome, a potentially life-threatening condition.
If concomitant use of RALDESY with other serotonergic drugs is clinically warranted, inform patients of the increased risk for serotonin syndrome and monitor for symptoms.
Table 3: Clinically Significant Drug Interactions with RALDESY Monoamine Oxidase Inhibitors (MAOIs) Clinical Impact: The concomitant use of MAOIs and serotonergic drugs including RALDESY increases the risk of serotonin syndrome.
If serotonin syndrome occurs, consider discontinuation of RALDESY and/or concomitant serotonergic drugs [see Warnings and Precautions (5.2) ].
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.