Comparing Dilantin vs Phenytoin

View side-by-side comparisons of medication uses, ratings, cost, side effects and interactions.
Dilantin Remove Dilantin from your drug comparison	Phenytoin Remove Phenytoin from your drug comparison	Add another drug to compare

Dilantin phenytoin

Phenytoin

Prescribed for Epilepsy, Seizures, Status Epilepticus, Neurosurgery, Seizure Prophylaxis During or Following Neurosurgery. Dilantin may also be used for purposes not listed in this medication guide.

Prescribed for Epilepsy, Seizures, Status Epilepticus, Neurosurgery, Seizure Prophylaxis During or Following Neurosurgery. May also be prescribed off label for Anxiety, Arrhythmia, Cluster-Tic... View more

Prescription only

Ratings & Reviews

View all 73 reviews

View all 103 reviews

Drug Class

Side Effects

Common side effects include: congenital anomalies.

See the full Dilantin side effects document.

Commonly reported side effects include: congenital anomalies.

See the full phenytoin side effects document.

Pricing and Coupons

* Prices are without insurance

Quantity	100 capsule, extended release
Dosage	100 mg
Per Unit^*	$1.59 - $1.74
Cost^*	$158.54 - $173.97

View all Dilantin prices and generic prices

Quantity	200 mL
Dosage	25 mg/mL
Per Unit^*	$1.30 - $1.88
Cost^*	$259.24 - $376.70

View all phenytoin prices

Get free Discount Card

Generic Availability

Yes

Yes (this medicine)

Dosage Form(s) Available

Oral capsule, extended release
Oral suspension
Oral tablet, chewable

Oral suspension
Oral tablet, chewable

Brand Names

Other phenytoin brands include: Di-Phen, Phenytek, Phenytoin Sodium, Phenytoin Sodium, Extended Release Di-Phen, Dilantin, Phenytek, Phenytoin Sodium, Phenytoin Sodium, Extended Release

Half Life

The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value.

15 hours

CSA Schedule**

View glossary of terms.

Not a controlled drug

Is not subject to the Controlled Substances Act.

Not a controlled drug

Is not subject to the Controlled Substances Act.

Pregnancy Category

Category D Positive evidence of risk

See the full Pregnancy Warnings document.

Category D Positive evidence of risk

See the full Pregnancy Warnings document.

Drug Interactions

A total of 768 drugs are known to interact with Dilantin:

191 major drug interactions (525 brand and generic names)
531 moderate drug interactions (3433 brand and generic names)
46 minor drug interactions (282 brand and generic names)

A total of 768 drugs are known to interact with phenytoin:

191 major drug interactions (525 brand and generic names)
531 moderate drug interactions (3433 brand and generic names)
46 minor drug interactions (282 brand and generic names)

Alcohol/Food/Lifestyle Interactions

Phenytoin levels may decrease when the suspension is given with enteral feedings. This could lead... View more
Using phenytoin together with alcohol may alter the effects of phenytoin. Contact your doctor if... View more

Phenytoin levels may decrease when the suspension is given with enteral feedings. This could lead... View more
Using phenytoin together with alcohol may alter the effects of phenytoin. Contact your doctor if... View more

Disease Interactions

First Approval Date

January 06, 1953

WADA Class

View World Anti-Doping Agency classifications.

N/A

More Information

Consumer Resources

Professional Resources

Prescribing Information

Related Treatment Guide

** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer