Adult dose and duration500 mg to 1 g orally every 8 to 12 hours (immediate-release). - The formulary states no course length for this general range. Its own pneumonia entry is a minimum of 5 days, and that entry has severity criteria this row does not.
Paediatric doseMild-moderate infection: 20-40 mg/kg/day divided every 8 hours (max 500 mg/dose) or 25-45 mg/kg/day divided every 12 hours (max 875 mg/dose); severe infection: 80-90 mg/kg/day divided every 12 hours (max 500 mg/dose) - see formulary for the full age-banded table.
Dose sourceEgyptian National Drug Formulary - Antimicrobial 2023 (amoxicillin monograph, Indications naming lower respiratory tract infections, and Dosage Regimen, Adult Dosing: Usual dosage range)
WhyNarrowed in August 2026 to what the documents actually support. The dose claim is sound: the formulary lists lower respiratory tract infection, pneumonia included, among amoxicillin's indications, and gives 500 mg to 1 g of the immediate-release form, taken every 8 to 12 hours, as the usual adult range. The indication claim was the problem - no document here links an antibiotic to abnormal sputum as a symptom, and the card's own cited article says the opposite: pus in the sputum does not by itself mean bacterial infection, and does not by itself call for an antibiotic. So the row is not offered for sputum. It is offered for a suspected bacterial lower respiratory infection, and the role printed on the row reflects that. The formulary attaches no course length to the general range; the pneumonia-specific line was not borrowed, because it carries its own severity criteria.
Cautions- NOT FOR SPUTUM COLOUR. On the article's own reading, purulent sputum need not mean bacterial infection and does not by itself call for an antibiotic - roughly 50% of those with acute bronchitis produce it.
- The guideline position on the commonest cause of this symptom: the ACCP advises against giving an antibiotic for uncomplicated acute bronchitis in an otherwise healthy adult.
- When an antibiotic IS indicated: the article restricts it to the case where a treatable pathogen has actually been identified - pertussis being its example. In practice that means fever with focal chest signs, a clear deterioration, or an identified pathogen - not the colour of the sputum.
- Penicillin allergy is a contraindication - ask about prior reactions before prescribing.
- Blood-stained sputum needs separate urgent work-up rather than empirical antibiotics alone.
- A large daily volume of purulent sputum raises the possibility of bronchiectasis and should prompt referral rather than repeated antibiotic courses.
- Persistent symptoms with weight loss or night sweats need TB work-up before or alongside antibiotic treatment - a live consideration in Egypt.