Sertraline Hydrochloride and Venlafaxine Hydrochloride: Interaction Overview

Sertraline Hydrochloride (Zoloft) + Venlafaxine Hydrochloride (Effexor)

Severity: Moderate

FDA label language suggests this combination may require monitoring, dose adjustment, or added caution. Make sure every prescriber involved in your care knows you take both.

Basis: Drug interactions section — monitoring/caution language of the Sertraline Hydrochloride FDA label.

What the FDA Label Says

Examples: propafenone, flecainide, atomoxetine, desipramine, dextromethorphan, metoprolol, nebivolol, perphenazine, thioridazine, tolterodine, venlafaxine Phenytoin Clinical Impact: Phenytoin is a narrow therapeutic index drug. sertraline hydrochloride may increase phenytoin concentrations.

Excerpt from the FDA prescribing label for Sertraline Hydrochloride (SPL set ID 01800452-c353-4235-a66a-214048752e74).

About These Medications

  • Sertraline Hydrochloride (Zoloft) medication guide — SSRI
  • Venlafaxine Hydrochloride (Effexor) medication guide — SNRI

Check other combinations with our interaction tool →

About this interaction data. These interactions were identified by automatically scanning FDA prescribing-label text for medications in Bridgeway's library. This is not a complete list and is not a substitute for review by your prescriber or pharmacist, who use comprehensive clinical databases. Always share your full medication list with your care team. How we source this data →

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Not medical advice. This page summarizes publicly available FDA drug labeling alongside general guidance from Bridgeway Integrated Healthcare Services. It is for educational purposes only and is not a substitute for advice from your prescriber or pharmacist. Never start, stop, or change a medication without talking to your healthcare provider. In an emergency, call 911.