Phenytek Warnings and Precautions

To help ensure a safe and effective treatment with Phenytek, it is a good idea to review the potential risks of the medication. For example, prior to taking Phenytek, be sure to tell your healthcare provider about any other medical conditions, especially if you have diabetes, liver disease, porphyria, or swollen lymph nodes. Other Phenytek warnings and precautions extend to women who are pregnant or breastfeeding.

Phenytek: What Should I Tell My Healthcare Provider?

You should talk with your healthcare provider prior to taking Phenytek® (phenytoin sodium) if you have:
  • Diabetes
  • Liver disease, such as liver failure or cirrhosis
  • Porphyria
  • Swollen lymph nodes
  • Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
  • Pregnant or thinking of becoming pregnant
  • Breastfeeding.
Make sure to tell your healthcare provider about any other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.

Specific Phenytek Warnings and Precautions

Some of the warnings and precautions to be aware of prior to taking Phenytek include the following:
  • Alcohol can affect the way your body metabolizes Phenytek. Talk to your healthcare provider about your alcohol consumption before taking the medication. It is important to keep your alcohol intake consistent while using Phenytek.
  • There have been reports of lymph node problems in people taking Phenytek. However, it is not known if Phenytek is the cause of these problems. These problems include swollen and tender lymph nodes and can be a sign of serious problems (such as certain cancers).
  • Phenytek can make porphyria worse. Porphyria is a group of conditions involving problems with certain enzymes in the body.
  • The liver helps remove Phenytek from the body. If you have liver disease, you may need a lower Phenytek dosage.
  • Because Phenytek can cause very serious skin rashes (which are sometimes life-threatening), tell your healthcare provider right away if you notice a rash. Most likely, you will need to stop taking Phenytek, either temporarily or permanently.
  • Phenytek may increase your blood sugar. This is especially important for people with diabetes.
  • Phenytek may cause weak bones, because it affects the way your body deals with vitamin D (which is important for strong bones).
  • As with all seizure medications, Phenytek should not be stopped suddenly.
  • Strange behavior or thinking may be a sign of too much Phenytek in your blood. Let your healthcare provider know if you notice any unusual thoughts or behavior.
  • Because Phenytek can cause gum problems, good dental care is very important while you are taking Phenytek.
  • Phenytek can interact with other medications (see Phenytek Drug Interactions).
  • Phenytek is considered a pregnancy Category D medication. This means that it is probably not safe for pregnant women. Talk to your healthcare provider about the risks and benefits of taking the drug during pregnancy (see Phenytek and Pregnancy).
  • Phenytek does pass through breast milk. Therefore, if you are breastfeeding or plan to start breastfeeding, discuss this with your healthcare provider prior to taking the drug (see Phenytek and Breastfeeding).
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Phenytek Drug Information

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