Dilantin

Phenytoin

Formulated to manage epileptic seizures to alleviate abnormal electrical activity in the brain.

Category
Neurology
Active ingredient
Phenytoin
Supply
Rx
Route
Oral use
Form
Tablet
Strengths
100mg

Dilantin details

Alternative names
Epanutin
Therapeutic class
Antiepileptic
Pharmacological class
Hydantoin anticonvulsant
Contraindications
hypersensitivity to phenytoin; bradycardia; heart block
Minor side effects
nausea; dizziness; insomnia; headache
Moderate side effects
gingival hyperplasia; nystagmus; ataxia; skin rash
Dosage forms
Tablet
Administration route
Oral use
Supply category
Prescription only (specially controlled medicine)
Manufacturer
Pfizer
Onset Time
2–4 hours
Duration
12–24 hours
Storage instructions
Store in a cool, dry place.
Drug interactions
Alcohol; St. John's Wort
Age restrictions
Use with caution in children and elderly patients.
Pregnancy and breastfeeding
Consult a specialist regarding potential risks during pregnancy.
Precautions and warnings

regular blood monitoring recommended; avoid abrupt discontinuation; may affect blood sugar control

Serious side effects

stevens-johnson syndrome, requires immediate medical attention; toxic epidermal necrolysis, requires immediate medical attention

Patient summary

Formulated to manage epileptic seizures to alleviate abnormal electrical activity in the brain.

Mechanism of action

Phenytoin stabilizes the neuronal membrane by modulating ion channels, specifically inhibiting the repetitive firing of action potentials, thereby controlling seizure activity.

Where this medicine is registered

  • Singapore
  • Hong Kong
  • Thailand
  • Malaysia
  • Philippines
  • Indonesia
  • Taiwan
  • South Korea
  • Japan
  • Australia
  • New Zealand
  • UAE
  • South Africa

About Dilantin

Dilantin represents a primary treatment containing phenytoin, used for the management of tonic-clonic seizure and focal seizure. The same active ingredient is also sold as Epanutin. Produced by Pfizer as a 100mg tablet, it remains a standard option for patients requiring consistent support for these specific neurological conditions.

Buying Dilantin online

Dilantin is registered across 14 markets including Thailand, Malaysia and the Philippines, with added availability in Indonesia, Taiwan and South Korea. As one of the most ordered items for seizure management across the region, it is frequently obtained online with straightforward delivery to various territories. Generic phenytoin, often produced in India, provides an affordable alternative to the original brand for expats living far from a well-stocked pharmacy.