Amoxicillin
Class: Penicillin-type beta-lactam antibiotic
Manufacturer: Gsk (for branded) and several generics updated below
Dosage Form: Capsule, Suspension or Tablet
Similar Brands:
Uses:
Used to treat a wide range of bacterial infections, including:
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Respiratory tract infections (e.g., bronchitis, pneumonia)
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Ear, nose, and throat infections (e.g., otitis media, sinusitis, pharyngitis)
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Urinary tract infections (UTIs)
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Skin and soft tissue infections
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Dental infections
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Helicobacter pylori (in combination therapy)
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Gonorrhoea (specific regimens)
Dosage:
Adults (including elderly):
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Mild to moderate infections:
250–500 mg every 8 hours -
Severe infections:
500–875 mg every 8 hours -
High-dose regimens (e.g., for sinusitis or pneumonia):
Up to 1 g every 8 hours or 3 g twice daily (as directed) -
Dental abscess:
500 mg every 8 hours for 5 days -
H. pylori eradication (with clarithromycin and PPI):
1 g twice daily for 7–14 days -
Gonorrhoea (single dose):
3 g as a single dose with 1 g probenecid
Children (under 40 kg):
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Usual dose:
20–40 mg/kg/day in divided doses every 8 hours
or 25–45 mg/kg/day in divided doses every 12 hours -
Severe infections:
Up to 90 mg/kg/day in divided doses (max 3 g/day) -
Otitis media or pneumonia (high-dose):
80–90 mg/kg/day in 2 divided doses -
Under 3 months (neonates/infants):
30 mg/kg/day in divided doses every 12 hours
Dosage should be adjusted in renal impairment.
Side Effects:
Nausea, vomiting, diarrhea, rash, urticaria, superinfections (e.g., candidiasis); rarely anaphylaxis, Stevens-Johnson syndrome
Warnings & Precautions:
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Use with caution in patients with renal impairment
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Monitor for signs of hypersensitivity, especially in patients with history of allergy to beta-lactams
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May cause Clostridioides difficile-associated diarrhea (CDAD)
Pregnancy & Lactation:
Considered safe; commonly used during pregnancy and breastfeeding
Drug Interactions:
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May reduce effectiveness of oral contraceptives
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Increased rash risk with allopurinol
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Enhanced effect of anticoagulants (e.g., warfarin)
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May alter gut flora affecting other oral drugs
Contraindications:
Known hypersensitivity to amoxicillin or other penicillins
Price: Ksh 150
Notes:
Amoxicillin Brands and Cost (Retail)
*list updated regularly
- Amoxil 125mg/5ml 100ml, by gsk, Ksh 700/-
- Amoxil forte 250/5ml 100ml, by gsk, Ksh 800/-
- Amoxil capsules 500mg 100s, by gsk, Ksh 4500/-
- Kemoxyl 250mg dispersible tablets 100s, by Lab & allied, Ksh 500/-