HomeDuloxetine

Duloxetine

Also known as: Duloxetine

Route: Oral

Check Duloxetine Interactions →
38 interactions on record⛔ Black Box Warning

Duloxetine has 38 known drug interactions based on U.S. FDA drug labeling data. Of these, 9 are contraindicated combinations that should be avoided entirely. 6 are classified as major interactions requiring close medical supervision. Notable interactions include combinations with Cimetidine, Ciprofloxacin, Enoxacin. Patients taking Duloxetine should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.

Total
38
Contraindicated
9
Major
6
Moderate
19
Minor
3

Contraindicated (9)

  • Duloxetine + CimetidinePotent CYP1A2 inhibitor; should be avoided due to significant increase in duloxetine concentrations.
  • Duloxetine + CiprofloxacinQuinolone antimicrobial that inhibits CYP1A2; should be avoided due to significant increase in duloxetine concentrations
  • Duloxetine + EnoxacinQuinolone antimicrobial that inhibits CYP1A2; should be avoided due to significant increase in duloxetine concentrations
  • Duloxetine + IsocarboxazidConcomitant use increases risk of serotonin syndrome. Use of isocarboxazid with duloxetine or within 5 days of stopping
  • Duloxetine + LinezolidConcomitant use increases risk of serotonin syndrome. Use of linezolid with duloxetine or within 5 days of stopping dulo
  • Duloxetine + Methylene BlueIntravenous methylene blue with duloxetine increases risk of serotonin syndrome and is contraindicated.
  • Duloxetine + PhenelzineConcomitant use increases risk of serotonin syndrome. Use of phenelzine with duloxetine or within 5 days of stopping dul
  • Duloxetine + SelegilineConcomitant use increases risk of serotonin syndrome. Use of selegiline with duloxetine or within 5 days of stopping dul
  • Duloxetine + TranylcypromineConcomitant use increases risk of serotonin syndrome. Use of tranylcypromine with duloxetine or within 5 days of stoppin

Major (6)

  • Duloxetine + Dextroamphetamine SulfateSNRI concomitant use increases risk of serotonin syndrome. Monitor for signs and symptoms; discontinue if serotonin synd
  • Duloxetine + FluoxetinePotent CYP2D6 inhibitor; expected to increase duloxetine concentrations similar to paroxetine.
  • Duloxetine + FluvoxaminePotent CYP1A2 inhibitor increased duloxetine AUC approximately 6-fold, Cmax about 2.5-fold, and half-life approximately
  • Duloxetine + MirtazapineSNRI concomitant use increases risk of serotonin syndrome. Monitor for signs/symptoms; consider discontinuation if serot
  • Duloxetine + ParoxetinePotent CYP2D6 inhibitor; increases duloxetine AUC by approximately 60%, with greater inhibition expected at higher doses
  • Duloxetine + QuinidinePotent CYP2D6 inhibitor; expected to increase duloxetine concentrations.

Moderate (19)

  • Duloxetine + Acetylsalicylic AcidConcurrent use may potentiate upper gastrointestinal bleeding risk due to serotonin reuptake inhibition effects on hemos
  • Duloxetine + AmphetamineConcomitant use increases risk of serotonin syndrome. Monitor for symptoms during treatment initiation and dose increase
  • Duloxetine + BuspironeConcomitant use increases risk of serotonin syndrome. Monitor for symptoms during treatment initiation and dose increase
  • Duloxetine + CitalopramSNRIs increase risk of serotonin syndrome. Monitor for signs and symptoms, particularly during initiation and dosage inc
  • Duloxetine + Citalopram HydrobromideAs an SNRI, concomitant use increases serotonin syndrome risk. Monitor for symptoms during initiation and dose increases
  • Duloxetine + ClozapineCYP2D6 or CYP3A4 inhibitor that can increase clozapine levels and lead to adverse reactions. Close monitoring and dose r
  • Duloxetine + DarifenacinCYP2D6 inhibitor; no dosing adjustments recommended for darifenacin when co-administered with duloxetine.
  • Duloxetine + DeferasiroxDeferasirox inhibits CYP1A2 resulting in increased duloxetine concentration. Monitor for exposure related toxicity.
  • Duloxetine + FexinidazoleFexinidazole inhibits CYP1A2, increasing duloxetine concentrations and risk of adverse reactions.
  • Duloxetine + LeflunomideExposure to duloxetine may be reduced when coadministered with leflunomide. Monitor and adjust dose as required.
  • Duloxetine + Leflunomide And Diclofenac Sodium GelExposure of duloxetine may be reduced in patients taking leflunomide. Monitor and adjust dose as required.
  • Duloxetine + LithiumConcomitant use increases risk of serotonin syndrome. Monitor for symptoms during treatment initiation and dose increase
  • Duloxetine + NsaidsConcurrent use may potentiate risk of upper gastrointestinal bleeding due to effects on serotonin-mediated platelet func
  • Duloxetine + Primaquine PhosphatePrimaquine may inhibit CYP1A2 and increase duloxetine exposure; increased monitoring for adverse reactions is recommende
  • Duloxetine + St. John'S WortConcomitant use increases risk of serotonin syndrome. Monitor for symptoms during treatment initiation and dose increase
  • Duloxetine + TeriflunomideTeriflunomide may reduce exposure of duloxetine. Monitor patients and adjust dose as required.
  • Duloxetine + TriptansConcomitant use increases risk of serotonin syndrome. Monitor for symptoms during treatment initiation and dose increase
  • Duloxetine + TryptophanConcomitant use increases risk of serotonin syndrome. Monitor for symptoms during treatment initiation and dose increase
  • Duloxetine + WarfarinMonitor carefully when initiating or discontinuing duloxetine. Altered anticoagulant effects and increased bleeding repo

Minor (3)

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.