ArticlesRefrigerated StorageLactation Safety Information ·


Refrigerated Storage

Pro-epanutinPfizer Limited

Pfizer Limited
Concentrate for infusion and solution for injection

In the event of an inadvertent temperature excursion the following data may be used:

In-house stability data from the company states that the undiluted product may be stored at room temperature (8°C to 25°C) for up to 72 hours and may be returned to the label storage condition without any effect on product quality/shelf life.

Please also refer to the manufacturer’s product literature for recommended storage information at

No - as per the information above
Yes - as per the information above
3 July 2020
London MI Service

Lactation Safety Information

Phenytoin if appropriate
Prodrug of phenytoin
No published evidence of safety of fosphenytoin. Moderate published evidence of use in breastfeeding for phenytoin
Small amounts of phenytoin in breast milk
Adverse effects reported in a small number of infants with phenytoin
5 August 2020