Gentamicin Injection 40 mg/mL

Here’s the detailed profile for Gentamicin Injection 40 mg/mL 👇

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💉 Gentamicin Injection 40 mg/mL

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📘 Description:

• Gentamicin is a potent aminoglycoside antibiotic.
• Supplied as solution for injection (40 mg/mL) in ampoules/vials.
• Mechanism of action: Binds to the 30S ribosomal subunit, interfering with protein synthesis and causing misreading of mRNA → bactericidal effect.
• Effective against aerobic Gram-negative bacilli and some Gram-positive bacteria (in combination therapy).

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📄 Prescription / Indications:

Used in serious bacterial infections, including:

• Septicemia and bacteremia
• Severe respiratory tract infections (hospital-acquired pneumonia)
• Urinary tract infections (complicated, resistant cases)
• Intra-abdominal infections (often with metronidazole/β-lactams)
• Meningitis (neonatal/infant) – in combination therapy
• Endocarditis (with ampicillin, penicillin, or vancomycin for synergy)
• Skin, bone, and soft tissue infections
• Prophylaxis in surgical procedures (selected cases)

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🌿 Nature / Drug Class:

• Antibiotic – Aminoglycoside
• Concentration-dependent bactericidal activity
• Has a post-antibiotic effect against Gram-negative organisms

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✅ Advantages:

• Highly effective in life-threatening Gram-negative infections
• Synergistic with β-lactams or glycopeptides against Gram-positive organisms (esp. enterococci)
• Useful for neonatal sepsis and nosocomial infections
• The 40 mg/mL strength is commonly used in adults and hospital settings (more practical for dosing than 10 mg/mL)

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⚠️ Precautions:

Contraindications:

• Allergy to aminoglycosides

Cautions:

• Narrow therapeutic window → requires careful dosing and monitoring
• Renal impairment – dose adjustment mandatory
• Avoid long-term use (↑ toxicity risk)
• Avoid with other nephrotoxic/ototoxic drugs (vancomycin, amphotericin B, cisplatin, loop diuretics)

Adverse Effects:

• Nephrotoxicity (reversible if detected early)
• Ototoxicity – auditory & vestibular damage (may be irreversible)
• Neuromuscular blockade (rare; worsens myasthenia gravis)
• Local pain/irritation at injection site

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📦 Common Packaging:

• Ampoules/vials containing 2 mL or 10 mL solution (40 mg/mL concentration)
• Hospital packs also available

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💉 Administration:

• Intramuscular (IM) injection
• Intravenous (IV) slow injection or infusion (over 30–60 minutes)
• Dosage based on:
  • Body weight (mg/kg)
  • Infection severity
  • Renal function
• Therapeutic drug monitoring (TDM) strongly recommended (peak & trough levels)

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❄️ Storage Conditions:

• Store at 15–25°C
• Protect from light
• Do not freeze

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