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  • IndicationsDILANTIN® (extended phenytoin sodium capsules, USP) is a prescription medicine used to treat certain types of seizures called tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures and to prevent and treat seizures that happen during or after brain surgery.
  • Important Safety Information
  • Prescribing Information
  • Medication Guide
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START SAVING ON BRAND-NAME DILANTIN*

Make sure you take your card to the pharmacy so you can save on brand-name DILANTIN.

*Terms and Conditions apply.

SUCCESSFUL REGISTRATION!

  • You should receive a physical copy of your savings card within 7–10 business days.
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3 TIPS TO GET BRAND-NAME DILANTIN

    • Prescription pad icon

      At your doctor's office:

      Ask your doctor to prescribe brand-name DILANTIN and to indicate "DAW" (Dispense As Written)—or the language used in your state—on all of your DILANTIN prescriptions.

    • Mortar and pestle icon

      At your pharmacy's drop-off:

      Tell the pharmacist that you want brand-name DILANTIN—and be sure to use the DILANTIN Savings Card if eligible.

    • Prescription Bottle icon

      At your pharmacy's pick-up:

      Check your pills to be sure they're brand-name DILANTIN—not the generic—and also check that you've saved on your prescription if eligible.

    LEARN MORE ABOUT DILANTIN

    • Taking DILANTIN
    • How to Get Brand-Name DILANTIN
    • Safety & Possible Side Effects
    Scroll for Important Safety Information and Indications

    IMPORTANT SAFETY INFORMATION AND INDICATIONS

    collapse collapsecollapse

    Do not take DILANTIN if you:

    • Are allergic to phenytoin or its inactive ingredients or other anticonvulsants such as CEREBYX (fosphenytoin), PEGANONE (ethotoin), or MESANTOIN (mephenytoin)
    • Have had liver problems from taking phenytoin
    • Take delavirdine (a drug which may be prescribed to you when you suffer from an HIV infection) since DILANTIN modifies its effect

    Do not stop taking DILANTIN without first talking to your healthcare provider. Stopping DILANTIN suddenly can cause serious problems. Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).

    Do not change your dose of DILANTIN without talking to your healthcare provider. Only your doctor can recommend changing your medication. When a change in the dosage form or brand is prescribed, careful monitoring of phenytoin serum levels should be carried out by your doctor.

    Like other antiepileptic drugs, DILANTIN may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Before you take DILANTIN, tell your healthcare provider if you have or have had depression, mood problems, or suicidal thoughts or behavior. Call a healthcare provider right away if you have thoughts about suicide or dying, attempts to commit suicide, new or worse depression, new or worse anxiety, feeling agitated or restless, panic attacks, trouble sleeping (insomnia), new or worse irritability, acting aggressive, being angry, or violent, acting on dangerous impulses, an extreme increase in activity and talking (mania), other unusual changes in behavior or mood.

    DILANTIN can cause a type of serious allergic reaction that may affect different parts of the body such as your liver, kidneys, blood, heart, skin, or other parts of your body. These can be very serious and cause death. Call your healthcare provider right away if you have any or all of these symptoms:

    • Fever
    • Rash
    • Swollen lymph glands
    • Bruise easily
    • Vomiting
    • Sore throat
    • Sores in your mouth
    • Swelling, especially of your face, eye, lips, or tongue, or perigenital swelling and swelling of arms and legs
    • Purple or red spots on your skin
    • Yellowing of the skin and the white parts of your eyes (jaundice)
    • Not wanting to eat (anorexia)
    • Nausea
    • Trouble swallowing or breathing
    • Increased infections

    If you experience a rash while taking DILANTIN or any of the symptoms listed below, contact your doctor immediately. DILANTIN may cause serious side effects, including:

    • A serious, life-threatening disorder called Stevens-Johnson syndrome and Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), which can be fatal
    • Softening of your bones (osteopenia, osteoporosis, and osteomalacia). This can cause broken bones
    • High levels of DILANTIN in your blood that could cause confusion also known as delirium, psychosis, or a more serious condition that affects how your brain works (encephalopathy)
    • DILANTIN can cause overgrowth of your gums. Brushing and flossing your teeth and seeing a dentist regularly while taking DILANTIN can help prevent this

    You should stop taking DILANTIN and seek immediate medical care if you develop swelling especially in the face, tongue, or upper airway.

    DILANTIN may cause problems with your heart, including a slow heartbeat. Let your healthcare provider know right away if you have any of these symptoms: dizziness, tiredness, feeling like your heart is beating slowly or skipping beats, and chest pain.

    Before you take DILANTIN, inform your doctor or pharmacist of all the medications you take, including prescription and over-the-counter medicines, and any medical conditions you have, including if you:

    • Have kidney or liver problems as you may show early signs of toxicity. DILANTIN may cause liver damage
    • Have or had porphyria (por-FER-ee-ah). DILANTIN has been associated with harmful effects on blood cells
    • Have or had diabetes. Your blood sugar level can be altered while taking DILANTIN

    If you take DILANTIN during pregnancy, your baby is at risk for serious birth defects and bleeding problems right after birth. Your healthcare provider may give you and your baby medicine to prevent this. All women of childbearing age should talk to their healthcare provider about using other possible treatments instead of DILANTIN. Tell your doctor if you are breastfeeding or plan to breastfeed. DILANTIN can pass into breast milk.

    Taking DILANTIN with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.

    Do not drink alcohol while you take DILANTIN without first talking to your healthcare provider. Drinking alcohol while taking DILANTIN may change your blood levels of DILANTIN, which can cause serious problems.

    The most common side effects of DILANTIN include irregular movement of the eye, problems with walking and coordination, slurred speech, trouble sleeping, confusion, dizziness, nervousness, tremor, headache, and nausea.

    All brands are trademarks of their owners.

    INDICATIONS

    DILANTIN is a prescription medicine used to treat certain types of seizures called tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures and to prevent and treat seizures that happen during or after brain surgery.

    Please see Full Prescribing Information and Medication Guide.

    YOU ARE NOW LEAVING DILANTIN.COM, A VIATRIS INC., COMPANY WEBSITE

    The website you are about to access is not owned or controlled byVIATRIS™. Links to other websites are provided as a convenience to users and the inclusion of any link does not imply the endorsement of the linked site by Viatris. Viatris accepts no responsibility for the content of any linked sites.

    The information provided in CELEBREXHCP.com is intended only for healthcare professionals in the United States.

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    Scroll for Important Safety Information and Indications

    IMPORTANT SAFETY INFORMATION AND INDICATIONS

    Do not take DILANTIN if you:

    • Are allergic to phenytoin or its inactive ingredients or other anticonvulsants such as CEREBYX (fosphenytoin), PEGANONE (ethotoin), or MESANTOIN (mephenytoin)
    • Have had liver problems from taking phenytoin
    • Take delavirdine (a drug which may be prescribed to you when you suffer from an HIV infection) since DILANTIN modifies its effect

    Do not stop taking DILANTIN without first talking to your healthcare provider. Stopping DILANTIN suddenly can cause serious problems. Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).

    Do not change your dose of DILANTIN without talking to your healthcare provider. Only your doctor can recommend changing your medication. When a change in the dosage form or brand is prescribed, careful monitoring of phenytoin serum levels should be carried out by your doctor.

    Like other antiepileptic drugs, DILANTIN may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Before you take DILANTIN, tell your healthcare provider if you have or have had depression, mood problems, or suicidal thoughts or behavior. Call a healthcare provider right away if you have thoughts about suicide or dying, attempts to commit suicide, new or worse depression, new or worse anxiety, feeling agitated or restless, panic attacks, trouble sleeping (insomnia), new or worse irritability, acting aggressive, being angry, or violent, acting on dangerous impulses, an extreme increase in activity and talking (mania), other unusual changes in behavior or mood.

    DILANTIN can cause a type of serious allergic reaction that may affect different parts of the body such as your liver, kidneys, blood, heart, skin, or other parts of your body. These can be very serious and cause death. Call your healthcare provider right away if you have any or all of these symptoms:

    • Fever
    • Rash
    • Swollen lymph glands
    • Bruise easily
    • Vomiting
    • Sore throat
    • Sores in your mouth
    • Swelling, especially of your face, eye, lips, or tongue, or perigenital swelling and swelling of arms and legs
    • Purple or red spots on your skin
    • Yellowing of the skin and the white parts of your eyes (jaundice)
    • Not wanting to eat (anorexia)
    • Nausea
    • Trouble swallowing or breathing
    • Increased infections

    If you experience a rash while taking DILANTIN or any of the symptoms listed below, contact your doctor immediately. DILANTIN may cause serious side effects, including:

    • A serious, life-threatening disorder called Stevens-Johnson syndrome and Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), which can be fatal
    • Softening of your bones (osteopenia, osteoporosis, and osteomalacia). This can cause broken bones
    • High levels of DILANTIN in your blood that could cause confusion also known as delirium, psychosis, or a more serious condition that affects how your brain works (encephalopathy)
    • DILANTIN can cause overgrowth of your gums. Brushing and flossing your teeth and seeing a dentist regularly while taking DILANTIN can help prevent this

    You should stop taking DILANTIN and seek immediate medical care if you develop swelling especially in the face, tongue, or upper airway.

    DILANTIN may cause problems with your heart, including a slow heartbeat. Let your healthcare provider know right away if you have any of these symptoms: dizziness, tiredness, feeling like your heart is beating slowly or skipping beats, and chest pain.

    Before you take DILANTIN, inform your doctor or pharmacist of all the medications you take, including prescription and over-the-counter medicines, and any medical conditions you have, including if you:

    • Have kidney or liver problems as you may show early signs of toxicity. DILANTIN may cause liver damage
    • Have or had porphyria (por-FER-ee-ah). DILANTIN has been associated with harmful effects on blood cells
    • Have or had diabetes. Your blood sugar level can be altered while taking DILANTIN

    If you take DILANTIN during pregnancy, your baby is at risk for serious birth defects and bleeding problems right after birth. Your healthcare provider may give you and your baby medicine to prevent this. All women of childbearing age should talk to their healthcare provider about using other possible treatments instead of DILANTIN. Tell your doctor if you are breastfeeding or plan to breastfeed. DILANTIN can pass into breast milk.

    Taking DILANTIN with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.

    Do not drink alcohol while you take DILANTIN without first talking to your healthcare provider. Drinking alcohol while taking DILANTIN may change your blood levels of DILANTIN, which can cause serious problems.

    The most common side effects of DILANTIN include irregular movement of the eye, problems with walking and coordination, slurred speech, trouble sleeping, confusion, dizziness, nervousness, tremor, headache, and nausea.

    All brands are trademarks of their owners.

    INDICATIONS

    DILANTIN is a prescription medicine used to treat certain types of seizures called tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures and to prevent and treat seizures that happen during or after brain surgery.

    Please see Full Prescribing Information and Medication Guide.

    IMPORTANT SAFETY INFORMATION AND INDICATIONS

    Do not take DILANTIN if you:

    • Are allergic to phenytoin or its inactive ingredients or other anticonvulsants such as CEREBYX (fosphenytoin), PEGANONE (ethotoin), or MESANTOIN (mephenytoin)
    • Have had liver problems from taking phenytoin
    • Take delavirdine (a drug which may be prescribed to you when you suffer from an HIV infection) since DILANTIN modifies its effect

    Do not stop taking DILANTIN without first talking to your healthcare provider. Stopping DILANTIN suddenly can cause serious problems. Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).

    Do not change your dose of DILANTIN without talking to your healthcare provider. Only your doctor can recommend changing your medication. When a change in the dosage form or brand is prescribed, careful monitoring of phenytoin serum levels should be carried out by your doctor.

    Like other antiepileptic drugs, DILANTIN may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Before you take DILANTIN, tell your healthcare provider if you have or have had depression, mood problems, or suicidal thoughts or behavior. Call a healthcare provider right away if you have thoughts about suicide or dying, attempts to commit suicide, new or worse depression, new or worse anxiety, feeling agitated or restless, panic attacks, trouble sleeping (insomnia), new or worse irritability, acting aggressive, being angry, or violent, acting on dangerous impulses, an extreme increase in activity and talking (mania), other unusual changes in behavior or mood.

    DILANTIN can cause a type of serious allergic reaction that may affect different parts of the body such as your liver, kidneys, blood, heart, skin, or other parts of your body. These can be very serious and cause death. Call your healthcare provider right away if you have any or all of these symptoms:

    • Fever
    • Rash
    • Swollen lymph glands
    • Bruise easily
    • Vomiting
    • Sore throat
    • Sores in your mouth
    • Swelling, especially of your face, eye, lips, or tongue, or perigenital swelling and swelling of arms and legs
    • Purple or red spots on your skin
    • Yellowing of the skin and the white parts of your eyes (jaundice)
    • Not wanting to eat (anorexia)
    • Nausea
    • Trouble swallowing or breathing
    • Increased infections

    If you experience a rash while taking DILANTIN or any of the symptoms listed below, contact your doctor immediately. DILANTIN may cause serious side effects, including:

    • A serious, life-threatening disorder called Stevens-Johnson syndrome and Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), which can be fatal
    • Softening of your bones (osteopenia, osteoporosis, and osteomalacia). This can cause broken bones
    • High levels of DILANTIN in your blood that could cause confusion also known as delirium, psychosis, or a more serious condition that affects how your brain works (encephalopathy)
    • DILANTIN can cause overgrowth of your gums. Brushing and flossing your teeth and seeing a dentist regularly while taking DILANTIN can help prevent this

    You should stop taking DILANTIN and seek immediate medical care if you develop swelling especially in the face, tongue, or upper airway.

    DILANTIN may cause problems with your heart, including a slow heartbeat. Let your healthcare provider know right away if you have any of these symptoms: dizziness, tiredness, feeling like your heart is beating slowly or skipping beats, and chest pain.

    Before you take DILANTIN, inform your doctor or pharmacist of all the medications you take, including prescription and over-the-counter medicines, and any medical conditions you have, including if you:

    • Have kidney or liver problems as you may show early signs of toxicity. DILANTIN may cause liver damage
    • Have or had porphyria (por-FER-ee-ah). DILANTIN has been associated with harmful effects on blood cells
    • Have or had diabetes. Your blood sugar level can be altered while taking DILANTIN

    If you take DILANTIN during pregnancy, your baby is at risk for serious birth defects and bleeding problems right after birth. Your healthcare provider may give you and your baby medicine to prevent this. All women of childbearing age should talk to their healthcare provider about using other possible treatments instead of DILANTIN. Tell your doctor if you are breastfeeding or plan to breastfeed. DILANTIN can pass into breast milk.

    Taking DILANTIN with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.

    Do not drink alcohol while you take DILANTIN without first talking to your healthcare provider. Drinking alcohol while taking DILANTIN may change your blood levels of DILANTIN, which can cause serious problems.

    The most common side effects of DILANTIN include irregular movement of the eye, problems with walking and coordination, slurred speech, trouble sleeping, confusion, dizziness, nervousness, tremor, headache, and nausea.

    All brands are trademarks of their owners.

    INDICATIONS

    DILANTIN is a prescription medicine used to treat certain types of seizures called tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures and to prevent and treat seizures that happen during or after brain surgery.

    Please see Full Prescribing Information and Medication Guide.

    DILANTIN SAVINGS CARD TERMS AND CONDITIONS

    By participating in the DILANTIN Savings Offer Program, you acknowledge that you currently meet the eligibility criteria and will comply with the terms and conditions described below:

    • Patients are not eligible to use this Savings Offer if they are enrolled in a state or federally funded insurance program, including but not limited to Medicare, Medicaid, TRICARE, Veteran Affairs healthcare, a state prescription drug assistance program, or the Government Health Insurance Plan available in Puerto Rico (formerly known as “La Reforma de Salud”)
    • Patient must have private insurance. This Savings Offer is not valid for cash-paying patients. The value of this Savings Offer is limited to $20 per use or the amount of your co-pay, whichever is less
    • This Savings Offer is not valid when the entire cost of your prescription drug is eligible to be reimbursed by your private insurance plans or other health or pharmacy benefit programs
    • You must deduct the savings received under this program from any reimbursement request submitted to your insurance plan, either directly by you or on your behalf
    • You are responsible for reporting use of this Savings Offer to any private insurer, health plan, or other third party who pays for or reimburses any part of the prescription filled using this Savings Offer, as may be required. You should not use this Savings Offer if your insurer or health plan prohibits use of manufacturer Savings Offers
    • Eligible patients may save up to $20 per monthly prescription fill. By using this Savings Offer, eligible patients may receive a savings of up to $20 per fill off their co-pay or out-of-pocket costs. This Savings Offer is available for a maximum savings of $240 per year ($20 per month x 12 months). For a mail-order 3-month prescription, your total maximum savings may be $60 ($20 x 3)
    • This Savings Offer is not valid (i) for Massachusetts residents or (ii) for California residents whose prescriptions are covered, in whole or in part, by third-party insurance
    • This Savings Offer is not valid where prohibited by law
    • This Savings Offer is not valid for purchases of prescriptions discounted under the 340B drug pricing program
    • This Savings Offer cannot be combined with any other savings, free trial, or similar offer for the specified prescription
    • This Savings Offer will be accepted only at participating pharmacies
    • This Savings Offer is not health insurance
    • This Savings Offer may not be redeemed more than once per 30 days per patient
    • No other purchase is necessary
    • This Savings Offer is good only in the U.S. and Puerto Rico
    • This Savings Offer is limited to 1 per person during this offering period and is not transferable
    • Data related to your redemption of this Savings Offer may be collected, analyzed, and shared with VIATRIS™ for market research and other purposes related to assessing Viatris' programs. Data shared with Viatris will be aggregated and de-identified; it will be combined with data related to other Savings Offer redemptions and will not identify you
    • Viatris reserves the right to rescind, revoke, or amend the program without notice
    • No membership fees. This Savings Offer and Program expire on 12/31/2023
    • For help with the DILANTIN Savings Offer, call 1-866-590-9400, visit DILANTIN.com, or write: Viatris, P.O. Box 2941, Mission, KS 66201

    If your pharmacy does not participate, you may be able to submit a request for a rebate in connection with this Savings Offer. Pay for your DILANTIN prescription and mail copy of original pharmacy receipt (cash register receipt NOT valid) with product name, date, and amount circled to: P.O. Box 6875, Bridgewater, NJ 08807. Be sure to include a copy of the front of your DILANTIN Savings Card, your name, and mailing address. Please expect up to 4 to 6 weeks for reimbursement.

    DILANTIN 100 mg capsules are available by prescription only.

    Patients should always ask their doctors for medical advice about adverse events.

    You are encouraged to report adverse events related to Viatris products by calling 1-877-446-3679 (U.S. only). If you prefer, you may contact the U.S. Food and Drug Administration (FDA) directly. Visit http://www.fda.gov/MedWatch or call 1-800-FDA-1088.

    This site is intended only for U.S. residents. The products discussed in this site may have different product labeling in different countries. The information provided is for educational purposes only and is not intended to replace discussions with a healthcare provider.

    Important Safety Information and Indications
    +-

    Do not take DILANTIN if you:

    • Are allergic to phenytoin or its inactive ingredients or other anticonvulsants such as CEREBYX (fosphenytoin), PEGANONE (ethotoin), or MESANTOIN (mephenytoin)
    • Have had liver problems from taking phenytoin
    • Take delavirdine (a drug which may be prescribed to you when you suffer from an HIV infection) since DILANTIN modifies its effect

    Do not stop taking DILANTIN without first talking to your healthcare provider. Stopping DILANTIN suddenly can cause serious problems. Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).

    Do not change your dose of DILANTIN without talking to your healthcare provider. Only your doctor can recommend changing your medication. When a change in the dosage form or brand is prescribed, careful monitoring of phenytoin serum levels should be carried out by your doctor.

    Like other antiepileptic drugs, DILANTIN may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Before you take DILANTIN, tell your healthcare provider if you have or have had depression, mood problems, or suicidal thoughts or behavior. Call a healthcare provider right away if you have thoughts about suicide or dying, attempts to commit suicide, new or worse depression, new or worse anxiety, feeling agitated or restless, panic attacks, trouble sleeping (insomnia), new or worse irritability, acting aggressive, being angry, or violent, acting on dangerous impulses, an extreme increase in activity and talking (mania), other unusual changes in behavior or mood.

    DILANTIN can cause a type of serious allergic reaction that may affect different parts of the body such as your liver, kidneys, blood, heart, skin, or other parts of your body. These can be very serious and cause death. Call your healthcare provider right away if you have any or all of these symptoms:

    • Fever
    • Rash
    • Swollen lymph glands
    • Bruise easily
    • Vomiting
    • Sore throat
    • Sores in your mouth
    • Swelling, especially of your face, eye, lips, or tongue, or perigenital swelling and swelling of arms and legs
    • Purple or red spots on your skin
    • Yellowing of the skin and the white parts of your eyes (jaundice)
    • Not wanting to eat (anorexia)
    • Nausea
    • Trouble swallowing or breathing
    • Increased infections

    If you experience a rash while taking DILANTIN or any of the symptoms listed below, contact your doctor immediately. DILANTIN may cause serious side effects, including:

    • A serious, life-threatening disorder called Stevens-Johnson syndrome and Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), which can be fatal
    • Softening of your bones (osteopenia, osteoporosis, and osteomalacia). This can cause broken bones
    • High levels of DILANTIN in your blood that could cause confusion also known as delirium, psychosis, or a more serious condition that affects how your brain works (encephalopathy)
    • DILANTIN can cause overgrowth of your gums. Brushing and flossing your teeth and seeing a dentist regularly while taking DILANTIN can help prevent this

    You should stop taking DILANTIN and seek immediate medical care if you develop swelling especially in the face, tongue, or upper airway.

    DILANTIN may cause problems with your heart, including a slow heartbeat. Let your healthcare provider know right away if you have any of these symptoms: dizziness, tiredness, feeling like your heart is beating slowly or skipping beats, and chest pain.

    Before you take DILANTIN, inform your doctor or pharmacist of all the medications you take, including prescription and over-the-counter medicines, and any medical conditions you have, including if you:

    • Have kidney or liver problems as you may show early signs of toxicity. DILANTIN may cause liver damage
    • Have or had porphyria (por-FER-ee-ah). DILANTIN has been associated with harmful effects on blood cells
    • Have or had diabetes. Your blood sugar level can be altered while taking DILANTIN

    If you take DILANTIN during pregnancy, your baby is at risk for serious birth defects and bleeding problems right after birth. Your healthcare provider may give you and your baby medicine to prevent this. All women of childbearing age should talk to their healthcare provider about using other possible treatments instead of DILANTIN. Tell your doctor if you are breastfeeding or plan to breastfeed. DILANTIN can pass into breast milk.

    Taking DILANTIN with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.

    Do not drink alcohol while you take DILANTIN without first talking to your healthcare provider. Drinking alcohol while taking DILANTIN may change your blood levels of DILANTIN, which can cause serious problems.

    The most common side effects of DILANTIN include irregular movement of the eye, problems with walking and coordination, slurred speech, trouble sleeping, confusion, dizziness, nervousness, tremor, headache, and nausea.

    All brands are trademarks of their owners.

    INDICATIONS

    DILANTIN is a prescription medicine used to treat certain types of seizures called tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures and to prevent and treat seizures that happen during or after brain surgery.

    Please see Full Prescribing Information and Medication Guide.

    Do not take DILANTIN if you:

    • Are allergic to phenytoin or its inactive ingredients or other anticonvulsants such as CEREBYX (fosphenytoin), PEGANONE (ethotoin), or MESANTOIN (mephenytoin)
    • Have had liver problems from taking phenytoin
    • Take delavirdine (a drug which may be prescribed to you when you suffer from an HIV infection) since DILANTIN modifies its effect

    Do not stop taking DILANTIN without first talking to your healthcare provider. Stopping DILANTIN suddenly can cause serious problems. Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).

    Do not change your dose of DILANTIN without talking to your healthcare provider. Only your doctor can recommend changing your medication. When a change in the dosage form or brand is prescribed, careful monitoring of phenytoin serum levels should be carried out by your doctor.

    Like other antiepileptic drugs, DILANTIN may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Before you take DILANTIN, tell your healthcare provider if you have or have had depression, mood problems, or suicidal thoughts or behavior. Call a healthcare provider right away if you have thoughts about suicide or dying, attempts to commit suicide, new or worse depression, new or worse anxiety, feeling agitated or restless, panic attacks, trouble sleeping (insomnia), new or worse irritability, acting aggressive, being angry, or violent, acting on dangerous impulses, an extreme increase in activity and talking (mania), other unusual changes in behavior or mood.

    DILANTIN can cause a type of serious allergic reaction that may affect different parts of the body such as your liver, kidneys, blood, heart, skin, or other parts of your body. These can be very serious and cause death. Call your healthcare provider right away if you have any or all of these symptoms:

    • Fever
    • Rash
    • Swollen lymph glands
    • Bruise easily
    • Vomiting
    • Sore throat
    • Sores in your mouth
    • Swelling, especially of your face, eye, lips, or tongue, or perigenital swelling and swelling of arms and legs
    • Purple or red spots on your skin
    • Yellowing of the skin and the white parts of your eyes (jaundice)
    • Not wanting to eat (anorexia)
    • Nausea
    • Trouble swallowing or breathing
    • Increased infections

    If you experience a rash while taking DILANTIN or any of the symptoms listed below, contact your doctor immediately. DILANTIN may cause serious side effects, including:

    • A serious, life-threatening disorder called Stevens-Johnson syndrome and Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), which can be fatal
    • Softening of your bones (osteopenia, osteoporosis, and osteomalacia). This can cause broken bones
    • High levels of DILANTIN in your blood that could cause confusion also known as delirium, psychosis, or a more serious condition that affects how your brain works (encephalopathy)
    • DILANTIN can cause overgrowth of your gums. Brushing and flossing your teeth and seeing a dentist regularly while taking DILANTIN can help prevent this

    You should stop taking DILANTIN and seek immediate medical care if you develop swelling especially in the face, tongue, or upper airway.

    DILANTIN may cause problems with your heart, including a slow heartbeat. Let your healthcare provider know right away if you have any of these symptoms: dizziness, tiredness, feeling like your heart is beating slowly or skipping beats, and chest pain.

    Before you take DILANTIN, inform your doctor or pharmacist of all the medications you take, including prescription and over-the-counter medicines, and any medical conditions you have, including if you:

    • Have kidney or liver problems as you may show early signs of toxicity. DILANTIN may cause liver damage
    • Have or had porphyria (por-FER-ee-ah). DILANTIN has been associated with harmful effects on blood cells
    • Have or had diabetes. Your blood sugar level can be altered while taking DILANTIN

    If you take DILANTIN during pregnancy, your baby is at risk for serious birth defects and bleeding problems right after birth. Your healthcare provider may give you and your baby medicine to prevent this. All women of childbearing age should talk to their healthcare provider about using other possible treatments instead of DILANTIN. Tell your doctor if you are breastfeeding or plan to breastfeed. DILANTIN can pass into breast milk.

    Taking DILANTIN with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.

    Do not drink alcohol while you take DILANTIN without first talking to your healthcare provider. Drinking alcohol while taking DILANTIN may change your blood levels of DILANTIN, which can cause serious problems.

    The most common side effects of DILANTIN include irregular movement of the eye, problems with walking and coordination, slurred speech, trouble sleeping, confusion, dizziness, nervousness, tremor, headache, and nausea.

    All brands are trademarks of their owners.

    INDICATIONS

    DILANTIN is a prescription medicine used to treat certain types of seizures called tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures and to prevent and treat seizures that happen during or after brain surgery.

    Please see Full Prescribing Information and Medication Guide.

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    DILANTIN is a registered trademark of Viatris Specialty LLC, a Viatris Company. VIATRIS and the Viatris logo are trademarks of Mylan Inc., a Viatris Company.

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