Nefazodone and Upadacitinib interaction
Nefazodone and Upadacitinib: 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 Upadacitinib (Rinvoq) label · effective 2026-06-30
For patients with atopic dermatitis, coadministration of RINVOQ 30 mg once daily with strong CYP3A4 inhibitors is not recommended.
Strong CYP3A4 Inhibitors : See the Full Prescribing Information for dosage modification for patients with atopic dermatitis, ulcerative colitis, and Crohn’s disease.
Strong CYP3A4 Inhibitors Upadacitinib exposure is increased when it is co-administered with a strong CYP3A4 inhibitor (such as ketoconazole, clarithromycin, and grapefruit), which may increase the risk of adverse reactions [see Clinical Pharmacology ( 12.3 )] .
Monitor patients with rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, non-radiographic axial spondylarthritis, pJIA, or giant cell arteritis closely for adverse reactions when co-administering RINVOQ/RINVOQ LQ with strong CYP3A4 inhibitors.
For patients with ulcerative colitis or Crohn’s disease taking strong CYP3A4 inhibitors, reduce the RINVOQ induction dosage to 30 mg once daily.
From the Nefazodone (Nefazodone Hydrochloride) label · effective 2025-07-31
Immunosuppressive Agents There have been reports of increased blood concentrations of cyclosporine and tacrolimus into toxic ranges when patients received these drugs concomitantly with nefazodone.
If either cyclosporine or tacrolimus is administered with nefazodone, blood concentrations of the immunosuppressive agent should be monitored and dosage adjusted accordingly.
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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.