Answer
When commercially manufactured Tamiflu powder for oral suspension is unavailable, pharmacy compounding of a 6 mg/ml suspension from Tamiflu (oseltamivir) hard capsules uses water containing sodium benzoate at 0.05% w/v as the preservative.
Sources for this answer
- Tamiflu 30 mg, 45 mg and 75 mg Hard CapsulesRoche Products Limited · emc · SmPC §6.6 Special precautions for disposal and other handling · Version 36Document updated
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