Comparing Phenobarbital vs Phenytoin
Phenobarbital | Phenytoin |
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Phenobarbital | Phenytoin |
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Prescription only
Prescribed for Epilepsy, Hyperbilirubinemia, Sedation, Seizures, Insomnia. Phenobarbital may also be used for purposes not listed in this medication guide. |
Prescription only
Prescribed for Epilepsy, Seizures, Cluster-Tic Syndrome, Status Epilepticus, Anxiety, Arrhythmia, Neurosurgery, Seizure Prophylaxis During or Following Neurosurgery, Myotonia Congenita, Peripheral... View more |
Related suggestions Seizures
Popular comparisons
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More about Phenobarbital | More about Phenytoin | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
Phenobarbital has an average rating of 9.1 out of 10 from a total of 35 ratings on Drugs.com. 91% of reviewers reported a positive effect, while 6% 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 Phenobarbital side effects |
View all Phenytoin side effects |
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Drug Class | |||||||||||||||||
Generic Availability | |||||||||||||||||
Lower cost generic |
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Phenobarbital prices |
View all Phenytoin prices |
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Dosage Forms | |||||||||||||||||
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Brand Names | |||||||||||||||||
Sezaby | 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. | |||||||||||||||||
118 hours |
15 hours |
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CSA Schedule 1 View glossary of CSA terms | |||||||||||||||||
Some potential for abuse
Has a low potential for abuse relative to those in schedule 3. It has a currently accepted medical use in treatment in the United States. Abuse may lead to limited physical dependence or psychological dependence relative to those in schedule 3. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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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. |
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Drug Interactions | |||||||||||||||||
A total of 803 drugs are known to interact with Phenobarbital:
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A total of 858 drugs are known to interact with Phenytoin:
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Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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Disease Interactions | |||||||||||||||||
First Approval Date | |||||||||||||||||
N/A |
January 06, 1953 |
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WADA Class View classifications | |||||||||||||||||
N/A |
N/A |
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More Information | |||||||||||||||||
Patient Resources | |||||||||||||||||
Professional Resources | |||||||||||||||||
Related Treatment Guide | |||||||||||||||||
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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.