A 35-year-old woman presents to her GP with 2 days of fever, productive cough, pleuritic chest pain and breathlessness. She is otherwise healthy. Examination reveals temperature 38.3 °C, respiratory rate 22 breaths/min, oxygen saturation 95% on room air, and left basal crackles. Chest X-ray shows a left lower lobe consolidation. She is not pregnant and has no significant comorbidities. According to Therapeutic Guidelines, what is the most appropriate oral antibiotic regimen if she is to be treated in the community?