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Hydromorphone and Linezolid Interaction

Drug interaction information between Hydromorphone and Linezolid.

Hydromorphone and Linezolid have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Hydromorphone and Linezolid. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.

Drug A

Hydromorphone

Opioid Analgesic

Drug B

Linezolid

Oxazolidinone Antibiotic

How They Interact

This antibiotic acts as an MAO inhibitor, which can cause a dangerous buildup of serotonin when used with certain pain medications.

What To Do

Your doctor may need to adjust your treatment or monitor you very carefully for signs of a serotonin reaction.

FDA Label Information

Examples: Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that affect the serotonin neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), certain muscle relaxants (i.e., cyclobenzaprine, metaxalone), monoamine oxidase (MAO) inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue). Examples: Phenelzine, tranylcypromine, and linezolid.

Frequently Asked Questions

Can I take Hydromorphone and Linezolid together?

This is a minor interaction. Your doctor may need to adjust your treatment or monitor you very carefully for signs of a serotonin reaction.

How serious is the interaction between Hydromorphone and Linezolid?

This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.

Why do Hydromorphone and Linezolid interact?

This antibiotic acts as an MAO inhibitor, which can cause a dangerous buildup of serotonin when used with certain pain medications.

Understanding the Hydromorphone and Linezolid Interaction

FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Hydromorphone belongs to the Opioid Analgesic class and Linezolid belongs to the Oxazolidinone Antibiotic class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: This antibiotic acts as an MAO inhibitor, which can cause a dangerous buildup of serotonin when used with certain pain medications. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.

Context around a specific patient determines real-world impact. Hydromorphone has 13 total documented interactions on file in this dataset, and Linezolid has 29. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Your doctor may need to adjust your treatment or monitor you very carefully for signs of a serotonin reaction. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.

An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Hydromorphone or Linezolid based on a web page, speak with your prescriber or pharmacist before making any change.

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.