Linezolid

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Restricted

C. diff Risk

Low

Oral Bioavailability

Excellent

Approximate Cost

PO: $3/day
IV: $42/day

Spectrum Of Activity

Dosing

Less than 12 years old30 mg/kg/day divided q8h

12 years old and older600 mg IV/PO q12h

600mg PO/IV q12h

May consider q8h dosing for Cystic Fibrosis patients with MIC 1 or greater

General Information

Common Usage

Targeted or empiric therapy for gram positive infections including skin and soft tissue, and pneumonia.

Covers MRSA and VRE.

Drug Monitoring

CBC at least once/week

Visual testing for therapy >3 months or if symptoms develop on therapy.

Adverse Effects

  • Serotonin syndrome

  • Rash

  • Elevated liver enzymes

  • Lactic acidosis

  • Myelosuppression (usually with >2weeks therapy)- reversible

  • Peripheral/optic neuropathy with prolonged courses

Major Interactions

SSRI and other serotonergics/MAOIs - Increased risk of serotonin syndrome.

Rifampin decreases linezolid levels.

Additional Information

Restricted to Infectious Diseases

Pharmacology

Antimicrobial class: Oxazolidinone

Pregnancy category: C

Average serum half life: 5 hours

CSF penetration: Therapeutic

Lung penetration: Therapeutic

Urine penetration: Therapeutic