Comparing Phenytoin vs Calan SR
Phenytoin | Calan SR |
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Phenytoin | Calan SR (verapamil) |
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Prescription only
Prescribed for Seizures, Epilepsy, Anxiety, Cluster-Tic Syndrome, Neurosurgery, Status Epilepticus, Arrhythmia, Seizure Prophylaxis During or Following Neurosurgery, Myotonia Congenita, Peripheral... View more |
Prescription only
Prescribed for High Blood Pressure. Calan SR may also be used for purposes not listed in this medication guide. |
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More about Phenytoin | More about Calan SR (verapamil) | ||||||||
Ratings & Reviews | |||||||||
Phenytoin has an average rating of 7.5 out of 10 from a total of 111 ratings on Drugs.com. 66% of reviewers reported a positive effect, while 17% reported a negative effect. |
Calan SR has an average rating of 8.6 out of 10 from a total of 10 ratings on Drugs.com. 67% of reviewers reported a positive effect, while 0% reported a negative effect. |
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Drug Class | |||||||||
Side Effects | |||||||||
See also: phenytoin side effects in more detail. |
See also: Calan SR side effects in more detail. |
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Generic Availability | |||||||||
Lower cost generic |
Lower cost generic approved | ||||||||
Pricing and Coupons * Prices are without insurance | |||||||||
View all phenytoin prices |
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
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Dosage Form(s) Available | |||||||||
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Brand Names | |||||||||
Di-Phen, Dilantin, Phenytek, Phenytoin Sodium, Phenytoin Sodium, Extended Release | Other verapamil brands include: Verelan, Verelan PM | ||||||||
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 |
12 hours |
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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. |
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Pregnancy Category | |||||||||
Category D
Positive evidence of risk
See the full pregnancy warnings document. |
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
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Drug Interactions | |||||||||
A total of 833 drugs are known to interact with phenytoin:
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A total of 647 drugs are known to interact with Calan SR:
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Alcohol/Food/Lifestyle Interactions | |||||||||
Disease Interactions | |||||||||
First Approval Date | |||||||||
January 06, 1953 |
December 16, 1986 |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||
N/A |
N/A |
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More Information | |||||||||
Patient resources | |||||||||
Professional Resources | |||||||||
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.