HomeLinezolidLinezolid + Venlafaxine Hcl Er

Does Linezolid Interact with Venlafaxine Hcl Er?

Linezolid and Venlafaxine Hcl Er have a contraindicated drug interaction according to U.S. FDA drug labeling data. MAOI with properties that increase risk of serotonin syndrome when used with venlafaxine. Contraindicated. The mechanism involves maoi activity increasing serotonergic neurotransmission. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Contraindicated
Linezolid Class
Oxazolidinone Antibacterial
Management
Do not take together
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Linezolid and Venlafaxine Hcl Er occurs because maoi activity increasing serotonergic neurotransmission. Clinically, this means maoi with properties that increase risk of serotonin syndrome when used with venlafaxine. contraindicated. Because of the severity of this interaction, these medications are contraindicated — meaning they should not be taken together under any circumstances. If you are currently taking both, contact your healthcare provider immediately to discuss alternatives.

What To Tell Your Doctor or Pharmacist

If you are taking Linezolid and your doctor is considering prescribing Venlafaxine Hcl Er (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Ask about alternative medications that do not interact with your current regimen
  • Ask how frequently you should be monitored while these are co-prescribed
  • Never stop or change either medication without first consulting your healthcare provider
💊 Linezolid(Zyvox)+💊 Venlafaxine Hcl Er(Effexor)

Severity & Interaction Details

contraindicated
Avoid this combination
FDA labeling lists this pair as contraindicated. The risk outweighs the benefit in nearly all cases.
Severity scale
MinorContra
On record
Yes
Drug A class
Oxazolidinone Antibacterial
Drug B class
Source
NLP:venlafaxine hcl er

What this means in plain English

MAOI with properties that increase risk of serotonin syndrome when used with venlafaxine. Contraindicated.

About Linezolid and Venlafaxine Hcl Er

Linezolid is an Oxazolidinone Antibacterial. You may recognize them by the brand names Zyvox and Effexor. Both medications are taken by mouth. Venlafaxine Hcl Er additionally carries an FDA boxed warning, the FDA's strongest safety alert.

What the FDA label says

"MAOI activity increasing serotonergic neurotransmission"

📖 Source: NLP:venlafaxine hcl er

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.