Linzolid Tablet 400 mg is a potent synthetic antibiotic belonging to the oxazolidinone class. It is primarily indicated for the treatment of infections caused by Gram-positive bacteria, including strains resistant to other antibiotics such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE).

Linezolid, the active ingredient, works by inhibiting bacterial protein synthesis, effectively halting bacterial growth. It is highly effective against complicated and uncomplicated infections, including skin and soft tissue infections, pneumonia, and other serious Gram-positive infections. Linzolid is available in tablet form for oral administration, providing convenient treatment for outpatient and inpatient care.

রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Therapeutic Class

• Oxazolidinone antibiotics

• Anti-Gram-positive bacterial agent

Pharmacology

Linezolid is a bacteriostatic antibiotic that inhibits the formation of the bacterial initiation complex for protein synthesis. By binding to the 23S ribosomal RNA of the 50S subunit, it prevents the assembly of functional ribosomes, thereby blocking bacterial growth.

Linzolid exhibits excellent oral bioavailability (approximately 100%), allowing oral tablets to achieve plasma concentrations comparable to intravenous administration. It is widely distributed in tissues, including the lungs, skin, and soft tissues, making it effective in treating respiratory and skin infections.

Linezolid is metabolized primarily through non-enzymatic oxidation in the liver, producing inactive metabolites. Its half-life is approximately 4.5 to 5.5 hours, allowing twice-daily dosing. The drug is excreted through the kidneys, with 30–40% eliminated unchanged in the urine.

Indications

Linzolid 400 mg tablets are indicated for the treatment of:

• Complicated and uncomplicated skin and soft tissue infections, including MRSA-associated infections

• Nosocomial and community-acquired pneumonia caused by Gram-positive organisms

• Infections due to vancomycin-resistant Enterococcus faecium (VRE)

• Other serious Gram-positive bacterial infections where alternative treatments are limited

Dosage and Administration

• Adults: 400 mg orally every 12 hours for 10–14 days, depending on the severity and type of infection

• Children: Dose should be calculated based on body weight and clinical condition (use under medical supervision)

• Tablets can be taken with or without food

• Duration of therapy should be based on clinical response and culture sensitivity

Contraindications

• Known hypersensitivity to Linezolid or other oxazolidinones

• Concurrent use of monoamine oxidase inhibitors (MAOIs) or within 2 weeks of MAOI therapy due to risk of serotonin syndrome

• Severe uncontrolled hypertension in patients receiving serotonergic or adrenergic agents

  রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Side Effects

Common side effects of Linzolid 400 mg include:

• Gastrointestinal: nausea, vomiting, diarrhea, and taste disturbance

• Hematologic: reversible thrombocytopenia, anemia, or neutropenia with prolonged use

• Nervous system: headache, dizziness, insomnia, or peripheral neuropathy with long-term therapy

• Rare but serious: lactic acidosis, serotonin syndrome, or optic neuropathy

Precautions and Warnings

• Monitor complete blood count for therapy exceeding 2 weeks

• Use with caution in patients with renal or hepatic impairment

• Avoid tyramine-rich foods and concurrent serotonergic drugs to reduce the risk of hypertensive crises or serotonin syndrome

Pregnancy and Lactation

• Use only if clearly indicated; limited data on safety in pregnancy

• Linezolid is excreted in breast milk; breastfeeding should be discontinued or avoided during therapy

Storage Conditions

Store in a cool, dry place below 30°C, protected from light and moisture. Keep out of reach of children.