Ampiclox, manufactured by GlaxoSmithKline (GSK), is an established dual-penicillin combination antibiotic containing ampicillin and cloxacillin. It combines two synergistic active ingredients:
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Ampicillin (Broad-Spectrum Aminopenicillin): Broadens coverage across Gram-positive and Gram-negative bacteria by inhibiting peptidoglycan synthesis in bacterial cell walls.
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Cloxacillin (Penicillinase-Resistant Penicillin): Specifically targets and resists inactivation by beta-lactamase (penicillinase) enzymes produced by resistant strains such as Staphylococcus aureus.
By pairing these two agents, GSK Ampiclox delivers effective empirical coverage against mixed bacterial infections, protecting the ampicillin component from destruction by penicillinase-producing staphylococci.
Primary Medical Indications
GSK Ampiclox is indicated in adult, pediatric, and neonatal patients for treating mild to severe bacterial infections, including:
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Respiratory Tract Infections: Bronchitis, pneumonia, bronchopneumonia, tonsillitis, and pharyngitis.
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Skin & Soft Tissue Infections: Boils, carbuncles, abscesses, cellulitis, impetigo, and infected burn or wound sites.
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ENT Infections: Otitis media (middle ear infection), sinusitis, and quinsy.
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Pelvic & Obstetric Infections: Puerperal fever, post-operative septicemia, and pelvic inflammatory conditions.
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Neonatal Infections & Prophylaxis: Prevention and treatment of suspected or confirmed early neonatal bacterial infections (using specialized GSK Ampiclox Neonatal Drops/Syrup).
Key Product Specifications & Dosing Forms
| Feature | Specification |
| Active Ingredients | Ampicillin Trihydrate + Cloxacillin Sodium |
| Pharmacological Class | Aminopenicillin + Penicillinase-Resistant Penicillin Combination |
| Available Formulations | Oral capsules, dry syrup/oral suspension, neonatal drops, IM/IV injection vials |
| Common Strengths | 500 mg capsules (250/250 mg), 250 mg capsules, 125 mg/5 mL syrup, 90 mg/0.6 mL neonatal drops, 500 mg vial |
| Administration | Take orally on an empty stomach (1 hour before or 2 hours after meals) with a full glass of water for optimal absorption |
Important Safety Guidelines & Precautions
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Penicillin Hypersensitivity Warning: Strictly contraindicated in individuals with a history of severe allergic reactions (anaphylaxis, hives, Stevens-Johnson syndrome) to ampicillin, cloxacillin, penicillins, or cephalosporins.
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Empty Stomach Requirement: Food significantly impairs the gastrointestinal absorption of both ampicillin and cloxacillin. Doses should be timed away from meal intervals.
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Hepatic & Renal Monitoring: Caution should be exercised in patients with underlying renal or hepatic impairment; dosage adjustments may be required.
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Complete the Prescribed Course: Patients must finish the full course of therapy to prevent infection recurrence and reduce the risk of developing antimicrobial resistance.











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