Lizox 600 Tablet

✔️ Dosage & Administration

Linezolid tablets may be taken orally with or without food. When given intravenously, the infusion should be administered over 30–120 minutes.

Recommended Dosage

Neonates younger than 7 days:
Most premature neonates younger than 7 days, particularly those born at a gestational age below 34 weeks, may have slower clearance of linezolid and greater drug exposure. A starting regimen of 10 mg/kg every 12 hours may be considered. If clinical response is inadequate, the frequency may be increased to every 8 hours under specialist supervision. By 7 days of age, neonatal patients should generally receive 10 mg/kg every 8 hours.

No dosage adjustment is required when changing from intravenous to oral linezolid, as the oral formulation provides comparable systemic exposure.

✔️ Side Effects:

• Diarrhea
• Headache
• Nausea
• Vomiting
• Dyspepsia
• Localized abdominal pain
• Hypertension
• Pruritus
• Oral candidiasis
• Vaginal candidiasis
• Taste disturbance
• Tongue discoloration

✔️ Pregnancy & Lactation

Pregnancy:
Available clinical data have not demonstrated a clear association between linezolid exposure during pregnancy and major birth defects, miscarriage, or adverse maternal or fetal outcomes. Nevertheless, Lizox should be used during pregnancy only when the expected benefit outweighs the potential risk to the fetus.

Breastfeeding:
Linezolid passes into breast milk. The benefits of breastfeeding, the mother's need for linezolid, and potential effects on the breastfed infant should all be considered. Breastfed infants should be monitored for diarrhea and vomiting.

✔️ Lizox should not be used in patients with:

• Known allergy or hypersensitivity to linezolid or any component of the formulation.
• Current treatment with MAO inhibitors, such as phenelzine or isocarboxazid, or within 2 weeks of discontinuing such treatment.
• Uncontrolled hypertension, pheochromocytoma, or thyrotoxicosis when appropriate monitoring and management are not possible.
• Carcinoid syndrome without appropriate monitoring.
• Situations involving medicines that can produce significant interactions with linezolid, including certain sympathomimetic, vasopressor, dopaminergic, and serotonergic agents.

✔️ Drug Interactions

Linezolid is a reversible, nonselective monoamine oxidase (MAO) inhibitor and may therefore interact with adrenergic and serotonergic medicines.

Adrenergic, vasopressor and dopaminergic medicines:
Linezolid may enhance the blood-pressure-raising effect of indirect sympathomimetics, vasopressors, or dopaminergic agents. Close blood-pressure monitoring is required when such combinations are considered.

Serotonergic medicines:
The combination with serotonin reuptake inhibitors, tricyclic antidepressants, triptans, meperidine, buspirone, and other serotonergic agents may increase the risk of serotonin syndrome. Patients should be monitored carefully for relevant symptoms.

Food interactions:
Avoid consuming large quantities of tyramine-rich foods or beverages while taking linezolid, as excessive tyramine intake may contribute to increased blood pressure.

✔️ Precautions & Warnings

• Perform complete blood count (CBC) monitoring at least weekly, particularly when treatment exceeds 2 weeks.
• Monitoring is especially important in patients with pre-existing myelosuppression, chronic infections, or those taking other medicines that can suppress bone marrow function.
• Patients who develop changes in visual acuity, color vision, blurred vision, or visual-field abnormalities should undergo prompt ophthalmic evaluation.
• Linezolid is not approved for treatment of catheter-related bloodstream infections or catheter-site infections.
• Antibiotic-associated Clostridioides difficile-associated diarrhea (CDAD) can occur during treatment or even weeks after antibiotic therapy. Persistent or severe diarrhea should be medically evaluated.
• Patients with uncontrolled hypertension, pheochromocytoma, thyrotoxicosis, or those taking sympathomimetic, vasopressor, or dopaminergic medicines require careful blood-pressure monitoring.
• Recurrent nausea or vomiting, unexplained acidosis, or reduced bicarbonate levels during treatment may indicate lactic acidosis and require immediate medical assessment.
• Linezolid may increase the risk of hypoglycemia in patients receiving insulin or oral antidiabetic medicines. Diabetes treatment may need adjustment under medical supervision.

✔️ Storage:

• Store at 15°C–30°C unless otherwise specified on the product packaging.
• Protect from excessive heat, moisture, and direct light.
• Keep all medicines out of reach of children.