Nefazodone and terfenadine
Desk tier: Avoid together
Mechanism: labeled contraindication (labeled contraindication)
“Coadministration of terfenadine, astemizole, cisapride, pimozide, or carbamazepine with nefazodone hydrochloride is contraindicated”
Why this grade
Nefazodone label, Contraindications
The Nefazodone label lists this combination under Contraindications. Contraindications: "Coadministration of terfenadine, astemizole, cisapride, pimozide, or carbamazepine with nefazodone hydrochloride is contraindicated" Named in the label: "terfenadine" Retrieved from DailyMed 2026-10-02.
Nefazodone label on DailyMedAll pairs for Nefazodone · terfenadine
Educational reference only. Not FDA-cleared. The Prescribing Information governs.
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