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Product Name: Phenytoin
Generic Name: Phenytoin
Common Brands: Dilantin
Pharmaceutical Categories: Antiepileptic drugs, Anticonvulsants

Where to buy Phenytoin online:

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  • Dilantin capsules 100 mg
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  • Phenytoin (trade names include Dilantin, Di-Hydan, Dilantin Kapseals, Dintoina, Epanutin, Epsolin, Eptoin, Extended Phenytoin Sodium, Fenitoina, Hidantal, Phenytek, Epamin, Phenhydan) is an antiepileptic (anticonvulsant) drug from hydantoin derivatives pharmacological group. This medication is used to control seizures in certain types of epilepsy (including tonic-clonic seizures, focal seizures, absence seizures, seizures during surgery, status epilepticus), for the prevention of seizures following head trauma or neurosurgery, for the treatment of trigeminal neuralgia, neuropathic pain, abnormal heart rhythms, ventricular tachycardia, sudden episodes of atrial tachycardia, arrhythmias caused by cardiac glycoside toxicity, digoxin toxicity. Phenytoin Sodium works by slowing down impulses in the brain that cause seizures.


    Dilantin (Phenytoin Sodium) capsules 100 mg


    Customers also buy these medications from the same pharmacological classes:

  • Carbamazepine (Tegretol)
  • Carbidopa, Levodopa (Sinemet)
  • Cyclopentolate (Cyclogyl)
  • Divalproex (Depakote)
  • Fosphenytoin (Cerebyx)
  • Gabapentin (Neurontin)
  • Hydroxyzine (Atarax)
  • Lamotrigine (Lamictal)
  • Levetiracetam (Keppra)
  • Mycophenolate Mofetil (Cellcept)
  • Mephenytoin (Mesantoin)
  • Oxcarbazepine (Trileptal)
  • Peganone (Ethotoin)
  • Piracetam (Nootropil)
  • Pramipexole (Mirapex)
  • Primidone (Mysoline)
  • Topiramate (Topamax)
  • Tranexamic Acid (Cyklokapron)


    Pharmaceutical and medical classifications:

  • Anti-seizure medications
  • Anticonvulsants
  • Antiepileptic drugs
  • Cardiovascular medicines
  • Hydantoins
  • Neurological medications
  • Pain relief products
  • Voltage gated sodium channels blockers


    The Anatomical Therapeutic Chemical (ATC) classification system (developed by the World Health Organization):

  • N - Nervous system
  • N03 - Antiepileptics
  • N03A - Antiepileptics
  • N03AB - Hydantoin derivatives
  • N03AB02 - Phenytoin


    Medical conditions for phenytoin in the International Statistical Classification of Diseases and Related Health Problems:

  • Epilepsy and recurrent seizures - G40
  • Disorders of trigeminal nerve - G50
  • Trigeminal neuralgia - G50.0
  • Paroxysmal tachycardia - I47
  • Supraventricular tachycardia - I47.1
  • Ventricular tachycardia - I47.2
  • Other and unspecified soft tissue disorders, not elsewhere classified - M79
  • Neuralgia and neuritis, unspecified - M79.2
  • Abnormalities of heart beat - R00
  • Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system - T46
  • Poisoning by cardiac-stimulant glycosides and drugs of similar action, accidental (unintentional), initial encounter - T46.0X1A


    Pregnancy category:

  • D - Australia
  • D - United States (Positive evidence of risk)


    Forms of active pharmaceutical ingredients (APIs):

  • Phenytoin Base
  • Phenytoin Calcium
  • Phenytoin Sodium


    Chemical, international, and other names of this drug:

  • 2,4-Imidazolidinedione, 5,5-diphenyl-
  • 5,5-Diphenyl-imidazolidine-2,4-dione
  • Difenilhidantoina
  • Diphenin
  • Diphenine
  • Diphenylhydantoin
  • Diphenylhydantoine
  • Diphenylhydatanoin
  • Fenitoin
  • Fenitoina
  • Fenytoiini
  • Fenytoin
  • Fenytoina
  • Fenytoine
  • Hydantoin, 5,5-Diphenyl-
  • Iphenylhydantoin
  • Phenatine
  • Phenatoine
  • Phenitoin
  • Phentoin
  • Phenytoin Ca
  • Phenytoin Na
  • Phenytoin Natrium
  • Phenytoine
  • Phenytoinum


    Most known trade names (brands and generics) worldwide:

  • Dantoinal - Biotech Laboratorios
  • Di-Hydan - Sanofi, Genopharm Laboratoires
  • Dilantin - Pfizer, Parke-Davis
  • Dilantin Infatabs - Pfizer, Parke-Davis
  • Dilantin Kapseals - Pfizer
  • Dintoina - Recordati
  • Diphantoine - Wolfs
  • Diphedan - Egis
  • Epamin - Pfizer, Elea Laboratorio
  • Epanutin - Pfizer, Parke-Davis
  • Epilan-D - Gerot Pharmazeutika, Horna Business Service
  • Epitab - East West Pharma
  • Epsolin - Zydus Cadila
  • Eptoin - Abbott
  • Extended Phenytoin - Barr Laboratories, Mylan, Pliva, Wockhardt
  • Fenidantoin S - Altana Pharma, Italmex
  • Fenitoina - Rubio Laboratorios, TTN Thitiratsanon
  • Hidantal - Sanofi
  • Hidantoina - Sanofi
  • Ikaphen - Ikapharmindo Putramas
  • Neosidantoina - Bristol-Myers Squibb
  • Phenhydan - Desitin Arzneimittel, Gerot Pharmazeutika
  • Phenytek - Mylan, Bertek Pharmaceuticals
  • Phenytoin - Abbott, Alpharma, Sandoz, Watson Pharmaceuticals
  • Sinergina - Faes Farma
  • Zentropil - BASF


    Other medicines used in combinations with phenytoin:

  • Aminohydroxybutyric Acid
  • Amphetamine
  • Atropine
  • Belladonna Alkaloids
  • Caffeine
  • Calcium Carbonate
  • Cascara extract
  • Chlordiazepoxide
  • Diazepam
  • Ectylurea
  • Glutamic Acid
  • Mephobarbital
  • Pheneturide
  • Phenobarbital
  • Potassium Bromide
  • Pyritinol
  • Vitamin B6 (Pyridoxine Hydrochloride)


    References and external sources:

  • Phenytoin main article on Wikipedia: https://en.wikipedia.org/wiki/Phenytoin
  • Phenytoin compound on PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/Phenytoin
  • Phenytoin Sodium compound on PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/Phenytoin-sodium
  • Phenytoin medicine on DrugBank: https://go.drugbank.com/drugs/DB00252
  • Phenytoin Sodium on DrugBank: https://go.drugbank.com/salts/DBSALT000139
  • Phenytoin FAQ on MedlinePlus (revised 12/15/2019): https://medlineplus.gov/druginfo/meds/a682022.html
  • Phenytoin Injection FAQ on MedlinePlus (revised 12/15/2019): https://medlineplus.gov/druginfo/meds/a619062.html
  • Dilantin (Phenytoin Sodium) extended-release capsules drug label on DailyMed (revised March 21, 2022): https://dailymed.nlm.nih.gov/dailymed/drugInfo...
  • Direct Rx Phenytoin Sodium capsules drug label on DailyMed (revised January 21, 2020): https://dailymed.nlm.nih.gov/dailymed/drugInfo...
  • Dilantin (Phenytoin Sodium) extended-release capsules for oral use official prescribing information and medication guide from the U.S. FDA (revised 03/2021): https://www.accessdata.fda.gov/drugsatfda_docs/label...
  • Dilantin (Phenytoin Sodium) extended capsules prescribing information and medication guide from Pfizer pharmaceutical company (revised 03/2022): https://labeling.pfizer.com/showlabeling.aspx?id=546
  • Phenytoin Sodium Milpharm 100 mg film-coated tablets package information leaflet on Medicines.org.uk (revised 09/2022): https://www.medicines.org.uk/emc/files/pil.4225.pdf
  • Phenytoin Sodium Flynn 100 mg hard capsules package information leaflet on Medicines.org.uk (revised May 2022): https://www.medicines.org.uk/emc/files/pil.7558.pdf

    Revised: August 2023



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