Prescription onlyLower-cost generic availableClass: Neurology

Dilantin 

(phenytoin)

Prescription onlyLower-cost generic availableClass: Neurology
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Prevents seizures.

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Our bottom line

Dilantin (Phenytoin) is effective at preventing seizures, but has many drug interactions and side effects. If your blood tests show that you have the right amount of Dilantin (Phenytoin) levels, you’ll have a lower chance of getting side effects.

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Prices and coupons for 90 (100mg) capsules of phenytoin

Upsides

  • Dilantin (Phenytoin) is effective at preventing seizures, and treating seizures in an emergency.
  • Available in an oral suspension and chewable tablets if you have trouble swallowing capsules.
  • Available as a generic.

Downsides

  • Need to get blood tests regularly to make sure Dilantin (Phenytoin) has safe and effective levels in your body.
  • Can cause changes in your appearance, such as unwanted hair growth, enlargement of the gums, and coarsening of your facial features.
  • If you have kidney problems, your dose and kidney function will have to be checked regularly to make sure Dilantin (Phenytoin) levels don’t get too high.
  • Can make many other medicines less effective, including birth control.
How it works

Dilantin (Phenytoin) is an antiepileptic medication. It prevents seizures by stabilizing brain cells and lowering abnormal communication within the brain.

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Side effect rates for Dilantin (phenytoin)

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These are side effects of Dilantin (phenytoin) reported to the FDA by people taking it, and by doctors and pharmacists.
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Risks and Warnings for Dilantin (phenytoin)

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    • Higher risk if:
    • People of Asian ancestry

    Dilantin (Phenytoin) has been linked to severe, life-threatening skin reactions, including toxic epidermal necrolysis (TEN) and Stevens-Johnson syndrome (SJS). If you notice a rash or any other skin changes while taking Dilantin (Phenytoin), let your doctor know immediately.

Means that some groups have a high risk of experiencing this side effect

Common concerns from people taking Dilantin (phenytoin)

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Pregnancy
Kidneys and liver
  • If you have kidney problems, your dose and kidney function will have to be checked regularly to make sure Dilantin (Phenytoin) levels don’t get too high.