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Linezolid

Brand: Zyvox

Oxazolidinone antibioticUsed for: Resistant gram-positive infections, MRSAAnti-Infectives

No boxed warning on the current FDA label.

Caution
Myelosuppression with courses over 2 weeks; serotonin syndrome with serotonergic drugs because it inhibits MAO.

Common side effects

  • Diarrhea
  • Headache
  • Low platelet count
  • Peripheral neuropathy with long use

Key interactions

  • Also inhibits monoamine oxidase: serotonin syndrome risk with SSRIs, SNRIs, and triptans
  • Tyramine-rich foods can raise blood pressure

Counseling points

  • Tell the prescriber about every antidepressant you take
  • Limit aged cheese and cured meats
  • Blood counts are checked with longer courses
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