Buy Phenytoin (Dilantin) Cas 57-41-0

Phenytoin (PHT), sold under the brand name Dilantin among others,^[1] is an anti-seizure medication.^[3] It is useful for the prevention of tonic-clonic seizures (also known as grand mal seizures) and focal seizures, but not absence seizures.^[3] The intravenous form, fosphenytoin, is used for status epilepticus that does not improve with benzodiazepines.^[3] It may also be used for certain heart arrhythmias or neuropathic pain.^[3] It can be taken intravenously or by mouth.^[3] The intravenous form generally begins working within 30 minutes and is effective for roughly 24 hours.^[4] Blood levels can be measured to determine the proper dose.^[3]

Common side effects include nausea, stomach pain, loss of appetite, poor coordination, increased hair growth, and enlargement of the gums.^[3] Potentially serious side effects include sleepiness, self harm, liver problems, bone marrow suppression, low blood pressure, toxic epidermal necrolysis,^[3] and atrophy of the cerebellum.^[6][7][8] There is evidence that use during pregnancy results in abnormalities in the baby.^[3] It appears to be safe to use when breastfeeding.^[3] Alcohol may interfere with the medication’s effects.^[3]

Phenytoin was first made in 1908 by the German chemist Heinrich Biltz and found useful for seizures in 1936.^[9][10] It is on the World Health Organization’s List of Essential Medicines.^[11] Phenytoin is available as a generic medication.^[12] In 2020, it was the 260th most commonly prescribed medication in the United States, with more than 1 million prescriptions.^[13][14]

• Tonic-clonic seizures: Mainly used in the prophylactic management of tonic-clonic seizures with complex symptomatology (psychomotor seizures). A period of 5–10 days of dosing may be required to achieve anticonvulsant effects.^{[citation needed]}
• Focal seizures: Mainly used to protect against the development of focal seizures with complex symptomatology (psychomotor and temporal lobe seizures). Also effective in controlling focal seizures with autonomic symptoms.^{[citation needed]}
• Absence seizures: Not used in treatment of pure absence seizures due to risk for increasing frequency of seizures. However, can be used in combination with other anticonvulsants during combined absence and tonic-clonic seizures.^{[citation needed]}
• Seizures during surgery: A 2018 meta-analysis found that early antiepileptic treatment with either phenytoin or phenobarbital reduced the risk of seizure in the first week after neurosurgery for brain tumors.^[15]
• Status epilepticus: Considered after failed treatment using a benzodiazepine due to slow onset of action.^[16]

Though phenytoin has been used to treat seizures in infants, as of 2023, its effectiveness in this age group has been evaluated in only one study. Due to the lack of a comparison group, the evidence is inconclusive.^[17]