Phenytoin (oral): What Should I Discuss With My Healthcare Provider Before Taking Phenytoin
Content provided by Cerner Multum, Inc.
What should I discuss with my healthcare provider before taking phenytoin?
 | Do not use this medication if you are allergic to phenytoin. |
Before taking this medication, tell your doctor if you are allergic to any drugs, or if you have:
- liver disease;
- porphyria;
- diabetes; or
- a vitamin D deficiency or any other condition that causes thinning of the bones.
If you have any of these conditions, you may need a dose adjustment or special tests to safely take this medication.
Phenytoin can lower your blood sugar. If you are a diabetic, check your blood sugar regularly while you are taking this medication.
 | FDA pregnancy category D. This medication can cause harm to an unborn baby. Phenytoin may also not be as effective in reducing seizures if taken during pregnancy. Do not use phenytoin without your doctor's consent if you are pregnant. Tell your doctor if you become pregnant during treatment. Use an effective form of birth control while you are using this medication. |
Phenytoin can make birth control pills less effective. Use a non-hormonal form of birth control (such as a condom or diaphragm with spermicide) to prevent an unintended pregnancy.
 | Phenytoin can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby. |
| Last updated: | February 08, 2008 |
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© 2007, Cerner Multum, INC. Version: 5.02.
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