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Changes to the prescribing and availability of Epanutin (Phenytoin Sodium) capsules


  • Epanutin Capsules are to be discontinued. All other presentations of Epanutin™ continue to be available from Pfizer.
  • Phenytoin Sodium Flynn Hard Capsules are available.
  • Patient freephone helpline, 0800 077 8566, available to help manage any patient concerns.

Flynn Pharma Ltd recently acquired the Marketing Authorisations for Epanutin™ capsules, following which, the name has changed to Phenytoin Sodium Flynn Hard Capsules. Epanutin™ capsules will no longer be available as soon as current Pfizer Ltd. stocks in their Direct-to-Pharmacy supply chain are exhausted. All other presentations of Epanutin™ (Infatabs, suspension and solution for injection) continue to be available from Pfizer Ltd. via this supply route.

Flynn Pharma’s products are available from all leading wholesalers.

Phenytoin is a drug with a narrow therapeutic index (NTI) and, as such, there may be concerns amongst patients and prescribers regarding any change to the product.

Please assure patients that the Flynn Pharma product is identical to Epanutin™. There are no differences in formulation and the site of manufacture remains unchanged. The capsules contain the same identicode markings as Epanutin™.

Prescriptions should be written as Phenytoin Sodium Flynn xmg Hard Capsules.

Flynn has set up a Patient Helpline to deal with any queries they may have. The number is 0800 077 8566.

The new presentations are:

PIP code


Pack size


Phenytoin Sodium Flynn 25mg Hard Capsules



Phenytoin Sodium Flynn 50mg Hard Capsules



Phenytoin Sodium Flynn 100mg Hard Capsules



Phenytoin Sodium Flynn 300mg Hard Capsules


If you require any further information please contact Flynn Pharma Medical Information on 01438 727822 or e-mail

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