Influenza: Prophylaxis
|
First Line |
Second Line |
Antimicrobial |
Oseltamivir |
|
Dose |
75mg OD |
Route |
PO |
Duration |
10 days |
Renal Impairment (dose adjustments based on renal drug database)
Dose reduction is required for patients with renal impairment, see below:
Creatinine clearance |
Recommended prophylactic dose (10 day course) |
>30ml/min |
75mg ONCE daily |
11-30ml/min |
30mg ONCE daily |
<10ml/min |
30mg ONCE weekly (for 2 doses) |
Haemodialysis |
30mg STAT then 30mg after every SECOND HD session |
| Haemodiafiltration |
30mg THREE times a week after dialysis session (Dialysed) |
Peritoneal dialysis |
30mg ONCE weekly (for 2 doses) |
Haemo(dia)filtration
1-1.8L/hr exchange rate (continuous dialysis) |
30mg every 48 hours |
Haemo(dia)filtration
1.9-3.6 L/hr exchange rate (continous dialysis) |
30mg ONCE daily |
Haemo(dia)filtration
>3.6 L/hr exchange rate (continuous dialysis) |
75mg ONCE daily |
Additional Information
When a confirmed influenza virus positive patient has been nursed in a bay the other patients in that bay should receive antiviral prophylaxis.
Take a sample for laboratory detection of respiratory virus infection (Nose and Throat Swabs). If the patient already has influenza virus infection then prophylaxis should be changed to a full course of antiviral at treatment dose.
- Zanamivir may be used second line in immunocompromised patients, for further information see full treatment guidance.
Antiviral Treatment and Prophylaxis of Influenza v1.1.pdf
A number doses of influenza vaccine are available in the hospital pharmacy of influenza vaccine are available in the hospital pharmacy for patients in hospital who have not yet had the flu vaccine this influenza season. See Trust guidance on influenza vaccination for inpatients.