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Linezolid + Paroxetine

STOP — Contraindicated

FDA contraindication — do not co-administer. Use alternative antibiotics or discontinue paroxetine before starting linezolid.

Evidence level: STRONG

What this interaction means

Paroxetine (Paxil) combined with the antibiotic linezolid can cause life-threatening serotonin syndrome. The FDA says these should not be used together.

How it works (mechanism)

Linezolid (reversible MAO inhibitor) plus paroxetine (SSRI). FDA contraindication for serotonin syndrome risk.

Practical advice

Stop paroxetine before starting linezolid if possible. Be aware that paroxetine can cause withdrawal symptoms if stopped abruptly — your doctor should manage the taper.

Timing

Take Paroxetine and Linezolid at their usual prescribed times. Some antibiotics (linezolid especially) have serotonergic properties and should never be combined with SSRIs — if you are on linezolid, confirm this combination with your prescriber. Standard antibiotics like amoxicillin or azithromycin are generally safe alongside SSRIs.

Risk factors

Higher risk for: elderly, those on multiple serotonergic drugs, people with liver impairment, CYP2D6 poor metabolizers, recent dose changes, or concurrent use of MAOIs or triptans.

Symptoms to watch for

High fever, agitation, tremor, muscle rigidity, rapid heartbeat, blood pressure swings, seizures

What to tell your doctor

Discuss paroxetine taper schedule. Ask about alternative antibiotics. Paroxetine withdrawal can mimic serotonin syndrome — get guidance on distinguishing them.

Safer alternatives

Discuss this combination with your prescriber. They may adjust timing, dosing, or switch to an alternative with fewer interaction risks. Never stop an antidepressant abruptly — taper under medical guidance.

Frequently asked questions

Can I take Linezolid and Paroxetine together?

Paroxetine (Paxil) combined with the antibiotic linezolid can cause life-threatening serotonin syndrome. The FDA says these should not be used together.

When should I take Linezolid vs Paroxetine?

Take Paroxetine and Linezolid at their usual prescribed times. Some antibiotics (linezolid especially) have serotonergic properties and should never be combined with SSRIs — if you are on linezolid, confirm this combination with your prescriber. Standard antibiotics like amoxicillin or azithromycin are generally safe alongside SSRIs.

What symptoms should I watch for if I combine Linezolid and Paroxetine?

High fever, agitation, tremor, muscle rigidity, rapid heartbeat, blood pressure swings, seizures

Are there safer alternatives to combining Linezolid with Paroxetine?

Discuss this combination with your prescriber. They may adjust timing, dosing, or switch to an alternative with fewer interaction risks. Never stop an antidepressant abruptly — taper under medical guidance.

What should I tell my doctor about taking Linezolid and Paroxetine?

Discuss paroxetine taper schedule. Ask about alternative antibiotics. Paroxetine withdrawal can mimic serotonin syndrome — get guidance on distinguishing them.

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