Phenytoin Medication Information (dosing, side effects, patient counseling)

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Side Effects

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Your Medication Phenytoin

Phenytoin is also known as the brand name: Dilantin and Phenytek

Phenytoin comes in a capsule, oral suspension, chewable tablet, and injection dosage forms.

Phenytoin is most commonly used for the control and prevention of seizures. No matter what your doctor had you taking it for phenytoin is usually taken by mouth three times daily. DO NOT stop taking phenytoin at once because it can actually increase your risk of having a seizure.

Standard dosing of phenytoin ranges from: 100 mg to 300 mg

Some common side effects with phenytoin include decreased coordination, involuntary eye movement, confusion, slurred speech.
Some less common side effects with phenytoin include unusual hair growth, changes in muscle tone, blood disorders, facial changes, constipation, dizziness, enlargement of lips, fever, headache, trouble falling asleep, joint pain, nausea, nervousness, sore or swollen gums, skin peeling, skin rash, tremors, twitching, vomiting, or yellowing of skin and eyes.

Do not take phenytoin if you are hypersensitive to phenytoin or other hydantoins.

While taking phenytoin, remember it is important to tell your doctor or pharmacist if you:

• Have signs of an allergic reaction, such as rash, itching, swelling, or tightness of the chest
• Have a severe skin rash that is reddish or purplish.
• Are pregnant or plan to become pregnant.
• Have yellowing of skin and eyes as this could be a sign of liver disease.

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