Adult

Community-acquired pneumonia (CAP): non-severe (CURB65= 0-1)

Community-acquired pneumonia (CAP)

  • symptoms consistent with lower respiratory tract infection (i.e. fever, cough, chest pain) AND evidence of consolidation on Chest imaging.

CURB65Confusion (AMT 8 or less), Urea greater than 7mmol/L, Resp rate 30 breaths per minute or more, BP less than 90mmHg systolic or 60mmHg or less diastolic, Age 65 years or older

Treatment duration: 3-5 days 

Review empirical treatment within 48 hours 

Preferred

amoxicillin  500mg po tds

Alternative

For non-severe and severe penicillin allergy, OR pre-treatment with amoxicillin (within 2 weeks)doxycycline 100 mg po bd 
For penicillin allergy, non-severe and severe AND previously treated with doxycycline within 2 weeks: clarithromycin 500mg po bd 

Alternative in pregnancy for patients with penicillin allergy: erythromycin 500 mg po qds

Consider Delabelling of spurious penicillin allergy in patients who are low risk and are clinically stable. 

Additional information

Explain to patient that after starting treatment their symptoms should steadily improve, although the rate of improvement will vary with the severity of the pneumonia. Most adults can expect that by:

  • 1 week: fever should have resolved
  • 4 weeks: chest pain and sputum production should have substantially reduced

  • 6 weeks: cough and breathlessness should have substantially reduced

  • 3 months: most symptoms should have resolved but fatigue may still be present 

  • 6 months: they will feel back to normal 

 

Give advice to people with community-acquired pneumonia (or their parents or carers, if appropriate) about:

  • Possible adverse effects of the antibiotic(s)
  • Seeking further advice (if the person is receiving treatment in the community or via hospital at home service) if:
    • symptoms worsen rapidly or significantly or
    • symptoms do not start to improve within 3 days or
    • the person becomes systemically unwell

Editorial Information

Last reviewed: 31 Dec 2025

Author(s): AMST.

Approved By: ASG