| Bioactivity | Fosphenytoin sodium is a phenytoin prodrug with similar anticonvulsant properties. Its main mechanism is to block frequency-dependent, use-dependent and voltage-dependent neuronal sodium channels, and therefore limit repetitive firing of action potentials. |
| In Vivo | Fosphenytoin is an effective neuroprotectant against ischemia-induced damage. In fosphenytoin (30 mg/kg, i.m.)-treated rat 5 min after ischemia episode, hippocampal CA1 pyramidal neurons remain at near control level (13.90 +/- 0.92), however, GFAP staining iss not significantly changed[1]. In fosphenytoin (84 mg/kg)-treated rat, the relative bioavailability of fosphenytoin is 83%. In fully kindled female Wistar rats, fosphenytoin dose-dependently increases the focal seizure (afterdischarge) threshold. Seizure severity and duration at threshold are reduced only after the highest does of fosphenytoin tested (84 mg/kg)[2]. |
| Name | Fosphenytoin disodium |
| CAS | 92134-98-0 |
| Formula | C16H13N2Na2O6P |
| Molar Mass | 406.24 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
| Reference | [1]. Chan SA, et al. Fosphenytoin reduces hippocampal neuronal damage in rat following transient global ischemia. Acta Neurochir (Wien). 1998;140(2):175-80. [2]. Loscher W, et al. Anticonvulsant effect of fosphenytoin in amygdala-kindled rats: comparison with phenytoin. Epilepsy Res. 1998 Mar;30(1):69-76. |
Fosphenytoin disodium
CAS: 92134-98-0 F: C16H13N2Na2O6P W: 406.24
Fosphenytoin sodium is a phenytoin prodrug with similar anticonvulsant properties. Its main mechanism is to block freque
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