Phenytoin (CYP2C9)

Phenytoin or diphenylhydantoin is both an anticonvulsant and an antiarrhythmic drug forming part of the class of drugs known as class 1C antiarrhythmics (sodium channel blockers). Phenytoin calms overstimulated nerves in the brain and heart. It is prescribed to treat epilepsy and cardiac arrhythmia.

Phenytoin and the benefit of DNA analysis

The rate at which phenytoin is processed within your body varies from one individual to another. This means that the efficacy and side effects of phenytoin can be predicted to some extent on the basis of your genes. Preventive DNA analysis can therefore be an important tool in optimising your medication.

Also known as

Fenytoin suspension, suspensie FNA, Diphantoïne-Z, Epanutin, Diphantoïne, Diphenylhydantoin, Fenitoina, Phenytoine, Phenytoinum, Epanutin, Eptoin, Dilantin
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