Comparing Gabapentin vs Phenytoin
| Gabapentin | Phenytoin |
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| Gabapentin | Phenytoin |
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Prescription only
Gabapentin is an anticonvulsant with pain-relieving effects that may be used to treat certain seizure disorders or relieve nerve pain. Common side effects include dizziness or drowsiness and it may... View more |
Prescription only
Prescribed for Epilepsy, Seizures, Status Epilepticus, Anxiety, Cluster-Tic Syndrome, Neurosurgery, Seizure Prophylaxis During or Following Neurosurgery, Arrhythmia, Myotonia Congenita, Peripheral... View more |
Related suggestions Seizures
Peripheral Neuropathy
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| More about Gabapentin | More about Phenytoin | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Gabapentin has an average rating of 7.1 out of 10 from a total of 2585 ratings on Drugs.com. 63% of reviewers reported a positive effect, while 21% reported a negative effect. |
Phenytoin has an average rating of 7.5 out of 10 from a total of 117 ratings on Drugs.com. 66% of reviewers reported a positive effect, while 15% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Gabapentin side effects |
View all Phenytoin side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Gabapentin prices |
View all Phenytoin prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Fanatrex, Gabarone, Gralise, Neurontin | Di-Phen, Dilantin, Phenytek, Phenytoin Sodium, Phenytoin Sodium, Extended Release | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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6 hours |
15 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||||||||||
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Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
Category D
Positive evidence of risk
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 271 drugs are known to interact with Gabapentin:
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A total of 863 drugs are known to interact with Phenytoin:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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December 30, 1993 |
January 06, 1953 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
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1 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.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.