Clostridioides difficile

General prescribing notes Clostridioides difficile infection (CDI)

Prescribing Notes:

  • Scottish Antimicrobial Prescribing Group (SAPG) updated advice on Clostridioides difficile (C.diff) Infection (CDI) contains algorithms for management of first episode, first recurrence and second/subsequent recurrences. 
  • For supporting evidence refer to NICE Guideline NG199.
  • The SAPG antimicrobial recommendations supersede those in Scottish guidance on CDI published by the Scottish Health Protection Network. The remainder of the guideline remains relevant to clinical practice and will be updated within the full guideline review.
  • Stop unnecessary antibiotics.
  • Loperamide and constipating drugs should not be used.
  • Proton Pump Inhibitor drugs (PPIs) are recognised as a risk factor for the development of C.difficile and relapses. PPIs should therefore only be continued when there is clear indication. An H2 antagonist may be used as an alternative to PPI for gastric acid suppression. All forms of ranitidine are currently out of stock with no date of recovery – please see the national MSAN (Ranitidine: all formulations) and national MSAN (H2-anatagonists) information for further guidance.
  • The patient should be isolated until symptoms have resolved for 48 hours.
  • Clearance samples should not be sent.
  • If patient has underlying bowel pathology that may contribute to diarrhoea, this should be recorded on sample lab requests.
  • If the patient is a care home resident and has CDI then consult with the health protection team in Public Health for advice regarding reducing the risk of transmission to other residents.
  • In recurrent CDI contact infectious diseases or relevant specialist to discuss whether faecal transplant is an option.

History Notes

02/03/2023

Pathway title and prescribing notes updated, ERWG Jan 2023.

15/12/2021

East Region Formulary content agreed.

Treatment of first episode of Clostridioides difficile infection (CDI)

See 2nd choice options for patients who fail to improve after 7 days or worsen with oral vancomycin.

Vancomycin
Vancomycin 125mg capsules

125mg every 6 hours orally for 10 days.

Metronidazole is restricted to use in community settings if delays in supply of oral vancomycin would result in delayed initiation of treatment.

Metronidazole
Metronidazole 400mg tablets

400mg every 8 hours. Metronidazole should be substituted with oral vancomycin as soon as availability is resolved to complete a total of 10 days treatment.

Patients who fail to improve after 7 days or worsen with oral vancomycin, seek specialist advice. Treatment will be dependent on severity of disease and clinical setting. In community settings investigate antibiotic availability to inform choice. Fidaxomicin 40mg/ml oral suspension is restricted to use in patient who are unable to take tablets.

Fidaxomicin
Fidaxomicin 200mg tablets

200mg every 12 hours orally for 10 days.

Fidaxomicin 40mg/ml oral suspension sugar free

200mg every 12 hours orally for 10 days.

Vancomycin
Vancomycin 250mg capsules

500mg every 6 hours orally for 10 days.

For patients who are systemically unwell.

Metronidazole
Metronidazole 500mg/100ml infusion 100ml bags

500mg every 8 hours intravenously until improving or until 10 days has been completed.

Prescribing Notes:

  • If oral route is not available seek advice on administration via alternative enteral route.

History Notes

02/03/2023

New pathway to reflect SAPG antimicrobial recommendations, ERWG Jan 2023.

Treatment of first recurrence of Clostridioides difficile infection (CDI)

Seek specialist advice. Recurrence of CDI within 12 weeks (= relapse).
Exception – treatment failure identified as incomplete initial treatment course, treat as first episode of CDI. Fidaxomicin 40mg/ml oral suspension is restricted to use in patient who are unable to take tablets. In community settings investigate antibiotic availability to inform choice.

Fidaxomicin
Fidaxomicin 200mg tablets

200mg every 12 hours orally for 10 days.

Fidaxomicin 40mg/ml oral suspension sugar free

200mg every 12 hours orally for 10 days.

Seek specialist advice. Recurrence of CDI after 12 weeks (= recurrence).

Vancomycin
Vancomycin 125mg capsules

125mg every 6 hours orally for 10 days.

Prescribing Notes:

  • If oral route is not available seek advice on administration via alternative enteral route.

History Notes

02/03/2023

New pathway to reflect SAPG antimicrobial recommendations, ERWG Jan 20223.

Treatment of second recurrence of Clostridioides difficile infection (CDI)

Faecal Microbiota Transplant [Specialist Use Only]

Faecal Microbiota Transplant 30g in 50ml 0.9% saline + 10% glycerol (v/v) [Unlicensed Medicine]

Dose: As per specialist.

Prescribing Notes:

  • Contact infection specialist for advice. Faecal microbiota transplant (FMT) is recommended and requires referral to relevant specialist team. In NHS Lothian, contact infectious diseases. If FMT not available considering tapering oral vancomycin regime.

History Notes

08/11/2023

Addition Faecal Microbiota Transplant (MS21761), ERFC June 2023.

02/03/2023

New pathway to reflect SAPG antimicrobial recommendations, ERWG Jan 2023

Treatment of life-threatening Clostridioides difficile infection (CDI)

Prescribing Notes:

  • Seek urgent specialist advice including surgical review and refer to local board hospital antimicrobial prescribing guidelines.

History Notes

02/03/2023

New pathway to reflect SAPG antimicrobial recommendations, ERWG Jan 2023.

Treatment of Clostridioides difficile in children

Prescribing Notes:

History Notes

15/01/2024

East Region Formulary content agreed.