Fluoxetine Hydrochloride and Olanzapine: Interaction Overview

Fluoxetine Hydrochloride (Prozac) + Olanzapine (Zyprexa)

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: Boxed warning of the Fluoxetine Hydrochloride FDA label.

What the FDA Label Says

When using fluoxetine and olanzapine in combination, also refer to Boxed Warning section of the package insert for Symbyax.

Excerpt from the FDA prescribing label for Fluoxetine Hydrochloride (SPL set ID 02283de9-6087-45f7-a9ce-3b082ce860de).

About These Medications

  • Fluoxetine Hydrochloride (Prozac) medication guide — SSRI
  • Olanzapine (Zyprexa) medication guide — Atypical Antipsychotic

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.